Developer tools with a free plan

Listed alphabetically. A tool is ranked by its reviews once it has 3.

Developer tools with a free plan
Tool	Reviews	Lowest paid plan	Free plan	Free trial	Public API	Runs on	Main features
AivenYour AI-ready open source data platform	ReviewsNone yetWrite one for Aiven	Lowest paid plan$5per month, for PostgreSQLDeveloper, as of October 23, 2026	Free planYes	Free trial30 days	Public APIYes	Runs onCLI	Main features PostgreSQL MySQL Valkey
AppwriteAn open-source developer platform with Auth, Databases, Storage, Functions, Messaging, and Sites.	ReviewsNone yetWrite one for Appwrite	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APINot confirmed	Runs onNot confirmed	Main features Databases Serverless functions Messaging
Auth0Authentication and authorization platform to secure users, AI agents and more	ReviewsNone yetWrite one for Auth0	Lowest paid plan$35Essentials, as of October 19, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb, iOS, Android	Main features Universal Login Passwordless Multi-factor authentication
AxiomThe modern machine data platform	ReviewsNone yetWrite one for Axiom	Lowest paid plan$25per month, platform fee + usageAxiom Cloud, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Query Stream Dashboards
Better StackAI SRE observability stack with logs, tracing, error tracking, incidents and status pages	ReviewsNone yetWrite one for Better Stack	Lowest paid plan$34per responder per monthResponder, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs oniOS, Android	Main features Uptime monitoring Log management OpenTelemetry tracing
BitriseBuild, test, and deploy iOS and Android apps on dedicated Apple silicon infrastructure	ReviewsNone yetWrite one for Bitrise	Lowest paid plan$89per month, billed annuallyStarter, as of October 23, 2026	Free planYes	Free trial30 days	Public APIYes	Runs onCLI	Main features Bitrise CI Build Hub Build Cache
BlacksmithA drop-in replacement for GitHub runners that runs your GitHub Actions faster and costs less.	ReviewsNone yetWrite one for Blacksmith	Lowest paid plan$0.08per minutemacOS M4, as of October 28, 2026	Free planYes	Free trialNot confirmed	Public APINot confirmed	Runs onUbuntu, Windows, macOS	Main features Faster cache downloads Docker layer caching Instant microVM provisioning
BrevoOne AI-powered customer platform for all your marketing and sales needs	ReviewsNone yetWrite one for Brevo	Lowest paid planNot confirmed	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Marketing automation Transactional messaging SMS marketing
BuildkiteCI ready for the demands of AI-led workflows	ReviewsNone yetWrite one for Buildkite	Lowest paid plan$30per active user per monthPro Plan, as of October 23, 2026	Free planYes	Free trial30 days	Public APIYes	Runs onNot confirmed	Main features Buildkite Pipelines Buildkite Test Engine Buildkite Package Registries
ChecklyThe active reliability layer for developers and agents	ReviewsNone yetWrite one for Checkly	Lowest paid plan$24per month, billed annuallyStarter, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb, CLI	Main features Uptime monitoring Synthetic monitoring Heartbeat monitoring
CircleCIValidate before you push. Spend less. Ship more	ReviewsNone yetWrite one for CircleCI	Lowest paid plan$15per month, starting atPerformance, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features Smarter Testing Docker layer caching Self-hosted runner
ClerkAuthentication and user management for React, Next.js, Remix and the modern web	ReviewsNone yetWrite one for Clerk	Lowest paid plan$25Pro, as of October 19, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb, iOS, Android	Main features Drop-in UI components Multi-factor authentication Passkeys
Cloud RunBuild apps or websites quickly on a fully managed platform.	ReviewsNone yetWrite one for Cloud Run	Lowest paid planNot confirmed	Free planYes	Free trialNot confirmed	Public APINot confirmed	Runs onWeb	Main features Source-based deployment GPU support Batch jobs
Cloudflare WorkersDeploy serverless functions globally in seconds	ReviewsNone yetWrite one for Cloudflare Workers	Lowest paid plan$5per account per month minimum, plus usageWorkers Paid, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features No cold starts Smart Placement Cron Triggers
CodemagicOne tool for all your mobile app builds. Test, build and release with ease	ReviewsNone yetWrite one for Codemagic	Lowest paid planSee plans	Free planYes	Free trialYes	Public APIYes	Runs onNot confirmed	Main features Build for all platforms Automate with Codemagic Fully hosted and maintained
ConfigCatA hosted service for feature flag and configuration management	ReviewsNone yetWrite one for ConfigCat	Lowest paid plan$110per monthPro, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onJetBrains, Slack	Main features Feature Flags & Remote Configuration Segmentation Team Management
ConvexThe reactive backend platform that keeps up with you and your agents	ReviewsNone yetWrite one for Convex	Lowest paid plan$25per developer per monthProfessional, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features Reactive database Real-time sync File storage
CoolifyOpen-source and self-hostable platform to deploy apps, databases and services to your own servers.	ReviewsNone yetWrite one for Coolify	Lowest paid plan$5per month base price for 2 servers, plus $3 per month per additional serverCloud, as of October 28, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb, Linux	Main features Push to deploy Free SSL certificates Pull request deployments
CronitorStatus, uptime and performance monitoring for agents, cron jobs, websites, APIs, and everything in between.	ReviewsNone yetWrite one for Cronitor	Lowest paid plan$2per monitor per month, plus $5 per user per monthBusiness, as of October 28, 2026	Free planYes	Free trial14 days	Public APIYes	Runs onNot confirmed	Main features Cron job monitoring Uptime and SSL checks Heartbeat monitoring
Deno DeployOne simple platform for all your JavaScript and TypeScript applications.	ReviewsNone yetWrite one for Deno Deploy	Lowest paid plan$20per monthPro, as of October 28, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb	Main features Automatic GitHub deploys Cron jobs OpenTelemetry observability
DescopeIdentity journeys for customers and AI agents	ReviewsNone yetWrite one for Descope	Lowest paid plan$249per month, billed annually, plus usage overagesPro, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb	Main features Descope Flows Passwordless authentication Self-service SSO setup
DevCycleThe first open standards feature management platform built to help developers ship faster	ReviewsNone yetWrite one for DevCycle	Lowest paid plan$500per month, billed annuallyBusiness, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI, VS Code, Slack	Main features Gradual Rollouts A/B Testing & Experimentation Feature Opt-In
DigitalOcean App PlatformBuild, deploy, and scale apps quickly using a simple, fully managed solution	ReviewsNone yetWrite one for DigitalOcean App Platform	Lowest paid plan$5per month, starting price per containerPaid Tier, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Built-in CI/CD Preview environments Autoscaling
Elastic EmailEmail API and SMTP for scalable email infrastructure	ReviewsNone yetWrite one for Elastic Email	Lowest paid plan$19per month for up to 50,000 emailsStarter, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Email API and SMTP Relay Webhooks Inbound routing
FlagsmithOpen source feature flag service	ReviewsNone yetWrite one for Flagsmith	Lowest paid plan$45per monthStart-Up, as of October 23, 2026	Free planYes	Free trial14 days	Public APIYes	Runs onSlack	Main features Feature Flags & Remote Config Segmentation A/B Testing & Experimentation
FliptGit-native feature flags that eliminate deployment fear	ReviewsNone yetWrite one for Flipt	Lowest paid plan$200per monthFlipt Pro, as of October 23, 2026	Free planYes	Free trial14 days	Public APIYes	Runs onNot confirmed	Main features Git-native workflows Intuitive UI with Git sync Real-time updates
FronteggA low-code CIAM platform for managing customer identity as you scale.	ReviewsNone yetWrite one for Frontegg	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features SSO and SCIM Multi-tenancy Adaptive MFA
FusionAuthThe CIAM platform built to deploy anywhere, give you total control, and scale across any modern architecture	ReviewsNone yetWrite one for FusionAuth	Lowest paid plan$162per month at 1,000 MAUs, billed annuallyStarter, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs oniOS, Android, Docker, Kubernetes	Main features Deploy anywhere Fine-grained authorization Machine-to-machine auth
GitHub ActionsBuild, test, and deploy your code right from GitHub	ReviewsNone yetWrite one for GitHub Actions	Lowest paid plan$4per user per monthTeam, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Hosted runners Matrix builds Live logs
GO Feature FlagOpen-source feature flags built on OpenFeature.	ReviewsNone yetWrite one for GO Feature Flag	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APINot confirmed	Runs onNot confirmed	Main features Progressive rollouts A/B testing Targeting rules
Grafana CloudMonitor metrics, logs, traces and profiles on a fully managed observability platform	ReviewsNone yetWrite one for Grafana Cloud	Lowest paid plan$19per month, plus usagePro, as of October 19, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Metrics, logs and traces Grafana Assistant Adaptive Telemetry
GrowthBookThe warehouse-native platform for experimentation, feature flags, and product analytics	ReviewsNone yetWrite one for GrowthBook	Lowest paid plan$40per seat per monthPro, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onSlack	Main features Feature Flags Experiments (A/B Tests) Safe rollouts
HankoOpen-source authentication and user management platform for modern apps	ReviewsNone yetWrite one for Hanko	Lowest paid plan$29per month, plus $0.01 per monthly active user over 10,000Pro, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb	Main features Passkeys Social Logins Multi-Factor Authentication
Harness CIBuild and test AI code at scale	ReviewsNone yetWrite one for Harness CI	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Test Intelligence Build Intelligence Docker Layer Caching
HoneycombObservability platform for AI-era software with fast queries and unified telemetry	ReviewsNone yetWrite one for Honeycomb	Lowest paid plan$150per month for 50M events, scaling to 750MPro, as of October 19, 2026	Free planYes	Free trialYes	Public APIYes	Runs onNot confirmed	Main features Distributed tracing BubbleUp SLOs
HypertuneType-safe, Git-based feature flags, experimentation, analytics, and app configuration	ReviewsNone yetWrite one for Hypertune	Lowest paid plan$10per team member per monthStarter, as of October 28, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb	Main features Type-safe feature flags Git-based version control Local flag evaluation
KindeDeveloper platform for authentication, access management and billing for SaaS products	ReviewsNone yetWrite one for Kinde	Lowest paid plan$25per month, plus usagePro, as of October 19, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs oniOS, Android	Main features Authentication User management Organizations
LaunchDarklyTake control of your code and agents at runtime	ReviewsNone yetWrite one for LaunchDarkly	Lowest paid plan$10per service connection per month, billed yearly, plus $8.33 per 1k client-side MAUFoundation, as of October 23, 2026	Free planYes	Free trial14 days	Public APIYes	Runs onSlack	Main features Automated rollbacks A/B/n testing Session replay
LettermintA European transactional email service running on its own infrastructure, exclusively in the EU.	ReviewsNone yetWrite one for Lettermint	Lowest paid plan€10per monthStarter, as of October 28, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Inbound email Email analytics Multiple domains
LogtoModern auth infrastructure for developers	ReviewsNone yetWrite one for Logto	Lowest paid plan$24per month, plus usagePro, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb, Android	Main features Multi-tenancy Enterprise SSO Role-based access control
MailerSendTeam-friendly email API for modern apps	ReviewsNone yetWrite one for MailerSend	Lowest paid plan$99.00per month, billed yearlyProfessional, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onSMTP	Main features Email API SMTP relay Inbound email routing
MailgunTransactional email delivery service and API for developers	ReviewsNone yetWrite one for Mailgun	Lowest paid plan$15per month for 10,000 emailsBasic, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onSMTP	Main features Email API and SMTP relay Inbound routing Email validation
MailjetEmail marketing software that's built for devs and loved by marketers	ReviewsNone yetWrite one for Mailjet	Lowest paid plan$9per month for 8,000 emailsStarter, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Email API SMTP Relay Webhooks
MailtrapModern email delivery for developer and product teams	ReviewsNone yetWrite one for Mailtrap	Lowest paid plan$15per month for 10,000 emailsBasic, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onSMTP	Main features Email API and SMTP Email Sandbox Email Marketing
MongoDB AtlasCloud document database with built-in resilience, scalability and enterprise-grade security	ReviewsNone yetWrite one for MongoDB Atlas	Lowest paid plan$0.08per hour for M10, from $56.94 per monthDedicated, as of October 19, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features Document database Multi-cloud clusters Auto-scaling
MotherDuckFast, serverless analytics powered by DuckDB with dedicated compute for every user and every agent.	ReviewsNone yetWrite one for MotherDuck	Lowest paid plan$250per org per month plus usageBusiness, as of October 28, 2026	Free planYes	Free trial7 days	Public APINot confirmed	Runs onNot confirmed	Main features Hypertenancy Agent data pipelines Agent-built visualizations
NamespaceCloud agents on Devboxes, fast GitHub Actions runners, and remote execution for Bazel.	ReviewsNone yetWrite one for Namespace	Lowest paid plan$100per monthTeam, as of October 28, 2026	Free planYes	Free trial30 days	Public APIYes	Runs onLinux, macOS, Windows	Main features Cloud agent Devboxes GitHub Actions runners Cross-invocation caching
NeonThe backend for apps and agents: serverless, branchable Postgres with auth, functions and storage	ReviewsNone yetWrite one for Neon	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Serverless Postgres Database branching Autoscaling
NetlifyCreate with AI or code, deploy instantly on production infrastructure	ReviewsNone yetWrite one for Netlify	Lowest paid plan$9per monthPersonal, as of October 19, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features Deploy previews Serverless functions Global edge network
New RelicIntelligent Observability resolves issues at scale, before they impact your bottom line	ReviewsNone yetWrite one for New Relic	Lowest paid plan$10per month for the first full platform user, then $99 per additional user, up to 5Standard, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features APM Infrastructure monitoring Logs
NorthflankThe runtime platform for autonomous software	ReviewsNone yetWrite one for Northflank	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features Build & deploy Release Scale
OryIdentity security for the agentic era	ReviewsNone yetWrite one for Ory	Lowest paid plan$770per yearProduction, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features Passkeys Multi-factor authentication Social sign-in
PineconePinecone is a fully managed vector database built for AI.	ReviewsNone yetWrite one for Pinecone	Lowest paid plan$20per month, flatBuilder, as of October 28, 2026	Free planYes	Free trial3 weeks	Public APIYes	Runs onTerminal	Main features Managed vector database Automatic indexing Pinecone Assistant
PlunkTransactional email, marketing campaigns, and automated workflows, all against one contact list	ReviewsNone yetWrite one for Plunk	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APIYes	Runs onSMTP	Main features Transactional email Dynamic segments MCP server
PostHogTrack usage, retention and feature adoption, connected to recordings, experiments and feature flags	ReviewsNone yetWrite one for PostHog	Lowest paid planNot confirmed	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb	Main features Product analytics Session replay Feature flags
PostmarkThe email delivery service that people actually like	ReviewsNone yetWrite one for Postmark	Lowest paid plan$15.00per month for 10,000 emailsBasic, as of October 20, 2026	Free planYes	Free trialYes	Public APIYes	Runs onSMTP	Main features Email API SMTP service Message streams
RailwayA full-stack cloud for deploying web apps, servers and databases with automatic scaling	ReviewsNone yetWrite one for Railway	Lowest paid plan$5per month, plus usageHobby, as of October 19, 2026	Free planYes	Free trial30 days	Public APINot confirmed	Runs onCLI	Main features Visual infrastructure canvas Instant preview environments Private networking
Redis CloudFully-managed Redis with faster commands, more data structures, and real-time performance at scale.	ReviewsNone yetWrite one for Redis Cloud	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APINot confirmed	Runs onAWS, Azure, GCP	Main features Redis Query Engine Active-Active multi-region Vector search
ReflagTypeScript feature management that gets you back to building, faster.	ReviewsNone yetWrite one for Reflag	Lowest paid plan$125per month, $100 on annual billingPro, as of October 28, 2026	Free planYes	Free trialYes	Public APIYes	Runs onNot confirmed	Main features Self-cleaning flags Type-safety with CLI Local evaluation
RenderIntuitive infrastructure to deploy and scale any app or agent	ReviewsNone yetWrite one for Render	Lowest paid plan$25per month, plus computePro, as of October 19, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features Web services and background workers Managed Postgres Full-stack preview environments
ResendEmail for developers	ReviewsNone yetWrite one for Resend	Lowest paid plan$20per month for 50,000 emailsPro, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onSMTP	Main features Transactional emails Marketing emails Inbound emails
RollbarError tracking that ends in a fix	ReviewsNone yetWrite one for Rollbar	Lowest paid plan$9per month at 10,000 occurrences, scaling with volumeEssentials, as of October 20, 2026	Free planYes	Free trial14 days	Public APIYes	Runs onNot confirmed	Main features Error monitoring Session replay Deploy tracking
SentryApplication monitoring for developers to see errors clearer and solve issues faster	ReviewsNone yetWrite one for Sentry	Lowest paid plan$26per month, billed annuallyTeam, as of October 19, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb, CLI	Main features Error monitoring Tracing Session replay
SevallaRun applications, databases, and static sites without managing infrastructure.	ReviewsNone yetWrite one for Sevalla	Lowest paid plan$0.02per GB per monthObject storage, as of October 28, 2026	Free planYes	Free trialYes	Public APIYes	Runs onWeb	Main features S3-compatible object storage Static site hosting Auto-deploy on push
SingleStoreThe real-time database for AI, apps and analytics.	ReviewsNone yetWrite one for SingleStore	Lowest paid planSee plans	Free planYes	Free trialYes	Public APIYes	Runs onAzure, Google Cloud	Main features Real-time HTAP engine Vector and full-text search Fast data ingestion
SMTP2GOEasily send and track all of your emails, and forget headaches with email delivery.	ReviewsNone yetWrite one for SMTP2GO	Lowest paid plan$15per monthStarter, as of October 28, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Email delivery tracking Email testing Automatic DKIM and SPF
StatsigThe modern product development platform	ReviewsNone yetWrite one for Statsig	Lowest paid plan$150per monthPro, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onSlack	Main features Experimentation Feature Management Product Analytics
StytchAPIs and SDKs to integrate authentication and security into your app	ReviewsNone yetWrite one for Stytch	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb	Main features Passkeys SAML and OIDC SSO Multi-factor authentication
SupabasePostgres development platform with auth, instant APIs, realtime, functions, storage and vectors	ReviewsNone yetWrite one for Supabase	Lowest paid plan$25per month, plus compute and usagePro, as of October 14, 2026	Free planYes	Free trialNot confirmed	Public APINot confirmed	Runs onWeb, CLI	Main features Postgres database Authentication Instant APIs
SuperTokensOpen source user authentication: build fast, maintain control, with reasonable pricing.	ReviewsNone yetWrite one for SuperTokens	Lowest paid plan$0.02per MAU per monthCloud, as of October 28, 2026	Free planYes	Free trialNot confirmed	Public APINot confirmed	Runs onAndroid, iOS, Flutter	Main features Email password login Passwordless magic links Social login
TursoSQLite-based database architecture for a database per user, agent and tenant	ReviewsNone yetWrite one for Turso	Lowest paid planSee plans	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features SQLite-compatible databases Database per tenant Embedded replicas
UnleashThe FeatureOps control plane built for enterprises	ReviewsNone yetWrite one for Unleash	Lowest paid plan$75per seat per month, billed monthly by credit cardPay-As-You-Go, as of October 23, 2026	Free planYes	Free trial14 days	Public APIYes	Runs onSlack	Main features Progressive rollouts Release templates Instant rollback
UpstashServerless data platform, one platform for all your data needs	ReviewsNone yetWrite one for Upstash	Lowest paid plan$0.2per 100K commandsPay as You Go, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI	Main features Serverless Redis Vector database QStash messaging
UptimeRobotCatch downtime before your users do	ReviewsNone yetWrite one for UptimeRobot	Lowest paid plan$9per month, billed annuallySolo, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onWeb, iOS, Android	Main features Website monitoring Keyword monitoring Ping monitoring
VercelAgentic infrastructure to ship apps and agents, from global delivery to serverless functions	ReviewsNone yetWrite one for Vercel	Lowest paid plan$20per developer seat per month, plus usagePro, as of October 19, 2026	Free planYes	Free trialYes	Public APIYes	Runs onCLI	Main features Preview deployments Fluid compute Global content delivery
WebflowGives every team the tools to build, manage, and grow a website that drives real revenue	ReviewsNone yetWrite one for Webflow	Lowest paid plan$15per site per month, billed yearlyBasic, as of October 20, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Webflow CMS Webflow AI Webflow Localize
WorkOSAuthentication and enterprise-ready features as APIs and drop-in UI for developers	ReviewsNone yetWrite one for WorkOS	Lowest paid planNot confirmed	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features AuthKit user management Single sign-on Directory Sync
ZeaburYour AI DevOps engineer handling all your deployments	ReviewsNone yetWrite one for Zeabur	Lowest paid plan$5per monthDev, as of October 23, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onCLI, Chrome extension, VS Code	Main features Servers & Clusters Domain & DNS Email Service
ZITADELZITADEL is the identity infrastructure platform built for developers and all users and applications.	ReviewsNone yetWrite one for ZITADEL	Lowest paid planUS$ 100per monthPro, as of October 28, 2026	Free planYes	Free trialNot confirmed	Public APIYes	Runs onNot confirmed	Main features Hosted login Multifactor and passkeys Role-based access control

From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.

How this list is made

A tool is listed here only when we've confirmed on its own website that it has a free plan. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed

Tool

Reviews

Lowest paid plan

Free plan

Free trial

Public API

Runs on

Main features

AivenYour AI-ready open source data platform

ReviewsNone yetWrite one

Lowest paid plan$5per month, for PostgreSQLDeveloper, as of October 23, 2026

Free planYes

Free trial30 days

Public APIYes

Runs onCLI

Main features

PostgreSQL
MySQL
Valkey

AppwriteAn open-source developer platform with Auth, Databases, Storage, Functions, Messaging, and Sites.

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APINot confirmed

Runs onNot confirmed

Main features

Databases
Serverless functions
Messaging

Auth0Authentication and authorization platform to secure users, AI agents and more

ReviewsNone yetWrite one

Lowest paid plan$35Essentials, as of October 19, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb, iOS, Android

Main features

Universal Login
Passwordless
Multi-factor authentication

AxiomThe modern machine data platform

ReviewsNone yetWrite one

Lowest paid plan$25per month, platform fee + usageAxiom Cloud, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Query
Stream
Dashboards

Better StackAI SRE observability stack with logs, tracing, error tracking, incidents and status pages

ReviewsNone yetWrite one

Lowest paid plan$34per responder per monthResponder, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs oniOS, Android

Main features

Uptime monitoring
Log management
OpenTelemetry tracing

BitriseBuild, test, and deploy iOS and Android apps on dedicated Apple silicon infrastructure

ReviewsNone yetWrite one

Lowest paid plan$89per month, billed annuallyStarter, as of October 23, 2026

Free planYes

Free trial30 days

Public APIYes

Runs onCLI

Main features

Bitrise CI
Build Hub
Build Cache

BlacksmithA drop-in replacement for GitHub runners that runs your GitHub Actions faster and costs less.

ReviewsNone yetWrite one

Lowest paid plan$0.08per minutemacOS M4, as of October 28, 2026

Free planYes

Free trialNot confirmed

Public APINot confirmed

Runs onUbuntu, Windows, macOS

Main features

Faster cache downloads
Docker layer caching
Instant microVM provisioning

BrevoOne AI-powered customer platform for all your marketing and sales needs

ReviewsNone yetWrite one

Lowest paid planNot confirmed

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Marketing automation
Transactional messaging
SMS marketing

BuildkiteCI ready for the demands of AI-led workflows

ReviewsNone yetWrite one

Lowest paid plan$30per active user per monthPro Plan, as of October 23, 2026

Free planYes

Free trial30 days

Public APIYes

Runs onNot confirmed

Main features

Buildkite Pipelines
Buildkite Test Engine
Buildkite Package Registries

ChecklyThe active reliability layer for developers and agents

ReviewsNone yetWrite one

Lowest paid plan$24per month, billed annuallyStarter, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb, CLI

Main features

Uptime monitoring
Synthetic monitoring
Heartbeat monitoring

CircleCIValidate before you push. Spend less. Ship more

ReviewsNone yetWrite one

Lowest paid plan$15per month, starting atPerformance, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

Smarter Testing
Docker layer caching
Self-hosted runner

ClerkAuthentication and user management for React, Next.js, Remix and the modern web

ReviewsNone yetWrite one

Lowest paid plan$25Pro, as of October 19, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb, iOS, Android

Main features

Drop-in UI components
Multi-factor authentication
Passkeys

Cloud RunBuild apps or websites quickly on a fully managed platform.

ReviewsNone yetWrite one

Lowest paid planNot confirmed

Free planYes

Free trialNot confirmed

Public APINot confirmed

Runs onWeb

Main features

Source-based deployment
GPU support
Batch jobs

Cloudflare WorkersDeploy serverless functions globally in seconds

ReviewsNone yetWrite one

Lowest paid plan$5per account per month minimum, plus usageWorkers Paid, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

No cold starts
Smart Placement
Cron Triggers

CodemagicOne tool for all your mobile app builds. Test, build and release with ease

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialYes

Public APIYes

Runs onNot confirmed

Main features

Build for all platforms
Automate with Codemagic
Fully hosted and maintained

ConfigCatA hosted service for feature flag and configuration management

ReviewsNone yetWrite one

Lowest paid plan$110per monthPro, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onJetBrains, Slack

Main features

Feature Flags & Remote Configuration
Segmentation
Team Management

ConvexThe reactive backend platform that keeps up with you and your agents

ReviewsNone yetWrite one

Lowest paid plan$25per developer per monthProfessional, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

Reactive database
Real-time sync
File storage

CoolifyOpen-source and self-hostable platform to deploy apps, databases and services to your own servers.

ReviewsNone yetWrite one

Lowest paid plan$5per month base price for 2 servers, plus $3 per month per additional serverCloud, as of October 28, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb, Linux

Main features

Push to deploy
Free SSL certificates
Pull request deployments

CronitorStatus, uptime and performance monitoring for agents, cron jobs, websites, APIs, and everything in between.

ReviewsNone yetWrite one

Lowest paid plan$2per monitor per month, plus $5 per user per monthBusiness, as of October 28, 2026

Free planYes

Free trial14 days

Public APIYes

Runs onNot confirmed

Main features

Cron job monitoring
Uptime and SSL checks
Heartbeat monitoring

Deno DeployOne simple platform for all your JavaScript and TypeScript applications.

ReviewsNone yetWrite one

Lowest paid plan$20per monthPro, as of October 28, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb

Main features

Automatic GitHub deploys
Cron jobs
OpenTelemetry observability

DescopeIdentity journeys for customers and AI agents

ReviewsNone yetWrite one

Lowest paid plan$249per month, billed annually, plus usage overagesPro, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb

Main features

Descope Flows
Passwordless authentication
Self-service SSO setup

DevCycleThe first open standards feature management platform built to help developers ship faster

ReviewsNone yetWrite one

Lowest paid plan$500per month, billed annuallyBusiness, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI, VS Code, Slack

Main features

Gradual Rollouts
A/B Testing & Experimentation
Feature Opt-In

DigitalOcean App PlatformBuild, deploy, and scale apps quickly using a simple, fully managed solution

ReviewsNone yetWrite one

Lowest paid plan$5per month, starting price per containerPaid Tier, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Built-in CI/CD
Preview environments
Autoscaling

Elastic EmailEmail API and SMTP for scalable email infrastructure

ReviewsNone yetWrite one

Lowest paid plan$19per month for up to 50,000 emailsStarter, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Email API and SMTP Relay
Webhooks
Inbound routing

FlagsmithOpen source feature flag service

ReviewsNone yetWrite one

Lowest paid plan$45per monthStart-Up, as of October 23, 2026

Free planYes

Free trial14 days

Public APIYes

Runs onSlack

Main features

Feature Flags & Remote Config
Segmentation
A/B Testing & Experimentation

FliptGit-native feature flags that eliminate deployment fear

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Lowest paid plan$200per monthFlipt Pro, as of October 23, 2026

Free planYes

Free trial14 days

Public APIYes

Runs onNot confirmed

Main features

Git-native workflows
Intuitive UI with Git sync
Real-time updates

FronteggA low-code CIAM platform for managing customer identity as you scale.

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

SSO and SCIM
Multi-tenancy
Adaptive MFA

FusionAuthThe CIAM platform built to deploy anywhere, give you total control, and scale across any modern architecture

ReviewsNone yetWrite one

Lowest paid plan$162per month at 1,000 MAUs, billed annuallyStarter, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs oniOS, Android, Docker, Kubernetes

Main features

Deploy anywhere
Fine-grained authorization
Machine-to-machine auth

GitHub ActionsBuild, test, and deploy your code right from GitHub

ReviewsNone yetWrite one

Lowest paid plan$4per user per monthTeam, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Hosted runners
Matrix builds
Live logs

GO Feature FlagOpen-source feature flags built on OpenFeature.

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APINot confirmed

Runs onNot confirmed

Main features

Progressive rollouts
A/B testing
Targeting rules

Grafana CloudMonitor metrics, logs, traces and profiles on a fully managed observability platform

ReviewsNone yetWrite one

Lowest paid plan$19per month, plus usagePro, as of October 19, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Metrics, logs and traces
Grafana Assistant
Adaptive Telemetry

GrowthBookThe warehouse-native platform for experimentation, feature flags, and product analytics

ReviewsNone yetWrite one

Lowest paid plan$40per seat per monthPro, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onSlack

Main features

Feature Flags
Experiments (A/B Tests)
Safe rollouts

HankoOpen-source authentication and user management platform for modern apps

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Lowest paid plan$29per month, plus $0.01 per monthly active user over 10,000Pro, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb

Main features

Passkeys
Social Logins
Multi-Factor Authentication

Harness CIBuild and test AI code at scale

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Test Intelligence
Build Intelligence
Docker Layer Caching

HoneycombObservability platform for AI-era software with fast queries and unified telemetry

ReviewsNone yetWrite one

Lowest paid plan$150per month for 50M events, scaling to 750MPro, as of October 19, 2026

Free planYes

Free trialYes

Public APIYes

Runs onNot confirmed

Main features

Distributed tracing
BubbleUp
SLOs

HypertuneType-safe, Git-based feature flags, experimentation, analytics, and app configuration

ReviewsNone yetWrite one

Lowest paid plan$10per team member per monthStarter, as of October 28, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb

Main features

Type-safe feature flags
Git-based version control
Local flag evaluation

KindeDeveloper platform for authentication, access management and billing for SaaS products

ReviewsNone yetWrite one

Lowest paid plan$25per month, plus usagePro, as of October 19, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs oniOS, Android

Main features

Authentication
User management
Organizations

LaunchDarklyTake control of your code and agents at runtime

ReviewsNone yetWrite one

Lowest paid plan$10per service connection per month, billed yearly, plus $8.33 per 1k client-side MAUFoundation, as of October 23, 2026

Free planYes

Free trial14 days

Public APIYes

Runs onSlack

Main features

Automated rollbacks
A/B/n testing
Session replay

LettermintA European transactional email service running on its own infrastructure, exclusively in the EU.

ReviewsNone yetWrite one

Lowest paid plan€10per monthStarter, as of October 28, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Inbound email
Email analytics
Multiple domains

LogtoModern auth infrastructure for developers

ReviewsNone yetWrite one

Lowest paid plan$24per month, plus usagePro, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb, Android

Main features

Multi-tenancy
Enterprise SSO
Role-based access control

MailerSendTeam-friendly email API for modern apps

ReviewsNone yetWrite one

Lowest paid plan$99.00per month, billed yearlyProfessional, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onSMTP

Main features

Email API
SMTP relay
Inbound email routing

MailgunTransactional email delivery service and API for developers

ReviewsNone yetWrite one

Lowest paid plan$15per month for 10,000 emailsBasic, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onSMTP

Main features

Email API and SMTP relay
Inbound routing
Email validation

MailjetEmail marketing software that's built for devs and loved by marketers

ReviewsNone yetWrite one

Lowest paid plan$9per month for 8,000 emailsStarter, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Email API
SMTP Relay
Webhooks

MailtrapModern email delivery for developer and product teams

ReviewsNone yetWrite one

Lowest paid plan$15per month for 10,000 emailsBasic, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onSMTP

Main features

Email API and SMTP
Email Sandbox
Email Marketing

MongoDB AtlasCloud document database with built-in resilience, scalability and enterprise-grade security

ReviewsNone yetWrite one

Lowest paid plan$0.08per hour for M10, from $56.94 per monthDedicated, as of October 19, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

Document database
Multi-cloud clusters
Auto-scaling

MotherDuckFast, serverless analytics powered by DuckDB with dedicated compute for every user and every agent.

ReviewsNone yetWrite one

Lowest paid plan$250per org per month plus usageBusiness, as of October 28, 2026

Free planYes

Free trial7 days

Public APINot confirmed

Runs onNot confirmed

Main features

Hypertenancy
Agent data pipelines
Agent-built visualizations

NamespaceCloud agents on Devboxes, fast GitHub Actions runners, and remote execution for Bazel.

ReviewsNone yetWrite one

Lowest paid plan$100per monthTeam, as of October 28, 2026

Free planYes

Free trial30 days

Public APIYes

Runs onLinux, macOS, Windows

Main features

Cloud agent Devboxes
GitHub Actions runners
Cross-invocation caching

NeonThe backend for apps and agents: serverless, branchable Postgres with auth, functions and storage

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Serverless Postgres
Database branching
Autoscaling

NetlifyCreate with AI or code, deploy instantly on production infrastructure

ReviewsNone yetWrite one

Lowest paid plan$9per monthPersonal, as of October 19, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

Deploy previews
Serverless functions
Global edge network

New RelicIntelligent Observability resolves issues at scale, before they impact your bottom line

ReviewsNone yetWrite one

Lowest paid plan$10per month for the first full platform user, then $99 per additional user, up to 5Standard, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

APM
Infrastructure monitoring
Logs

NorthflankThe runtime platform for autonomous software

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

Build & deploy
Release
Scale

OryIdentity security for the agentic era

ReviewsNone yetWrite one

Lowest paid plan$770per yearProduction, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

Passkeys
Multi-factor authentication
Social sign-in

PineconePinecone is a fully managed vector database built for AI.

ReviewsNone yetWrite one

Lowest paid plan$20per month, flatBuilder, as of October 28, 2026

Free planYes

Free trial3 weeks

Public APIYes

Runs onTerminal

Main features

Managed vector database
Automatic indexing
Pinecone Assistant

PlunkTransactional email, marketing campaigns, and automated workflows, all against one contact list

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APIYes

Runs onSMTP

Main features

Transactional email
Dynamic segments
MCP server

PostHogTrack usage, retention and feature adoption, connected to recordings, experiments and feature flags

ReviewsNone yetWrite one

Lowest paid planNot confirmed

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb

Main features

Product analytics
Session replay
Feature flags

PostmarkThe email delivery service that people actually like

ReviewsNone yetWrite one

Lowest paid plan$15.00per month for 10,000 emailsBasic, as of October 20, 2026

Free planYes

Free trialYes

Public APIYes

Runs onSMTP

Main features

Email API
SMTP service
Message streams

RailwayA full-stack cloud for deploying web apps, servers and databases with automatic scaling

ReviewsNone yetWrite one

Lowest paid plan$5per month, plus usageHobby, as of October 19, 2026

Free planYes

Free trial30 days

Public APINot confirmed

Runs onCLI

Main features

Visual infrastructure canvas
Instant preview environments
Private networking

Redis CloudFully-managed Redis with faster commands, more data structures, and real-time performance at scale.

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APINot confirmed

Runs onAWS, Azure, GCP

Main features

Redis Query Engine
Active-Active multi-region
Vector search

ReflagTypeScript feature management that gets you back to building, faster.

ReviewsNone yetWrite one

Lowest paid plan$125per month, $100 on annual billingPro, as of October 28, 2026

Free planYes

Free trialYes

Public APIYes

Runs onNot confirmed

Main features

Self-cleaning flags
Type-safety with CLI
Local evaluation

RenderIntuitive infrastructure to deploy and scale any app or agent

ReviewsNone yetWrite one

Lowest paid plan$25per month, plus computePro, as of October 19, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

Web services and background workers
Managed Postgres
Full-stack preview environments

ResendEmail for developers

ReviewsNone yetWrite one

Lowest paid plan$20per month for 50,000 emailsPro, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onSMTP

Main features

Transactional emails
Marketing emails
Inbound emails

RollbarError tracking that ends in a fix

ReviewsNone yetWrite one

Lowest paid plan$9per month at 10,000 occurrences, scaling with volumeEssentials, as of October 20, 2026

Free planYes

Free trial14 days

Public APIYes

Runs onNot confirmed

Main features

Error monitoring
Session replay
Deploy tracking

SentryApplication monitoring for developers to see errors clearer and solve issues faster

ReviewsNone yetWrite one

Lowest paid plan$26per month, billed annuallyTeam, as of October 19, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb, CLI

Main features

Error monitoring
Tracing
Session replay

SevallaRun applications, databases, and static sites without managing infrastructure.

ReviewsNone yetWrite one

Lowest paid plan$0.02per GB per monthObject storage, as of October 28, 2026

Free planYes

Free trialYes

Public APIYes

Runs onWeb

Main features

S3-compatible object storage
Static site hosting
Auto-deploy on push

SingleStoreThe real-time database for AI, apps and analytics.

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialYes

Public APIYes

Runs onAzure, Google Cloud

Main features

Real-time HTAP engine
Vector and full-text search
Fast data ingestion

SMTP2GOEasily send and track all of your emails, and forget headaches with email delivery.

ReviewsNone yetWrite one

Lowest paid plan$15per monthStarter, as of October 28, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Email delivery tracking
Email testing
Automatic DKIM and SPF

StatsigThe modern product development platform

ReviewsNone yetWrite one

Lowest paid plan$150per monthPro, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onSlack

Main features

Experimentation
Feature Management
Product Analytics

StytchAPIs and SDKs to integrate authentication and security into your app

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb

Main features

Passkeys
SAML and OIDC SSO
Multi-factor authentication

SupabasePostgres development platform with auth, instant APIs, realtime, functions, storage and vectors

ReviewsNone yetWrite one

Lowest paid plan$25per month, plus compute and usagePro, as of October 14, 2026

Free planYes

Free trialNot confirmed

Public APINot confirmed

Runs onWeb, CLI

Main features

Postgres database
Authentication
Instant APIs

SuperTokensOpen source user authentication: build fast, maintain control, with reasonable pricing.

ReviewsNone yetWrite one

Lowest paid plan$0.02per MAU per monthCloud, as of October 28, 2026

Free planYes

Free trialNot confirmed

Public APINot confirmed

Runs onAndroid, iOS, Flutter

Main features

Email password login
Passwordless magic links
Social login

TursoSQLite-based database architecture for a database per user, agent and tenant

ReviewsNone yetWrite one

Lowest paid planSee plans

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

SQLite-compatible databases
Database per tenant
Embedded replicas

UnleashThe FeatureOps control plane built for enterprises

ReviewsNone yetWrite one

Lowest paid plan$75per seat per month, billed monthly by credit cardPay-As-You-Go, as of October 23, 2026

Free planYes

Free trial14 days

Public APIYes

Runs onSlack

Main features

Progressive rollouts
Release templates
Instant rollback

UpstashServerless data platform, one platform for all your data needs

ReviewsNone yetWrite one

Lowest paid plan$0.2per 100K commandsPay as You Go, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI

Main features

Serverless Redis
Vector database
QStash messaging

UptimeRobotCatch downtime before your users do

ReviewsNone yetWrite one

Lowest paid plan$9per month, billed annuallySolo, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onWeb, iOS, Android

Main features

Website monitoring
Keyword monitoring
Ping monitoring

VercelAgentic infrastructure to ship apps and agents, from global delivery to serverless functions

ReviewsNone yetWrite one

Lowest paid plan$20per developer seat per month, plus usagePro, as of October 19, 2026

Free planYes

Free trialYes

Public APIYes

Runs onCLI

Main features

Preview deployments
Fluid compute
Global content delivery

WebflowGives every team the tools to build, manage, and grow a website that drives real revenue

ReviewsNone yetWrite one

Lowest paid plan$15per site per month, billed yearlyBasic, as of October 20, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Webflow CMS
Webflow AI
Webflow Localize

WorkOSAuthentication and enterprise-ready features as APIs and drop-in UI for developers

ReviewsNone yetWrite one

Lowest paid planNot confirmed

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

AuthKit user management
Single sign-on
Directory Sync

ZeaburYour AI DevOps engineer handling all your deployments

ReviewsNone yetWrite one

Lowest paid plan$5per monthDev, as of October 23, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onCLI, Chrome extension, VS Code

Main features

Servers & Clusters
Domain & DNS
Email Service

ZITADELZITADEL is the identity infrastructure platform built for developers and all users and applications.

ReviewsNone yetWrite one

Lowest paid planUS$ 100per monthPro, as of October 28, 2026

Free planYes

Free trialNot confirmed

Public APIYes

Runs onNot confirmed

Main features

Hosted login
Multifactor and passkeys
Role-based access control