Listed alphabetically. A tool is ranked by its reviews once it has 3.
| Tool | Reviews | Lowest paid plan | Free plan | Free trial | Public API | Runs on | Main features |
|---|---|---|---|---|---|---|---|
 CoggleA collaborative mind-mapping tool that helps you make sense of complex things. | ReviewsNone yetWrite one for Coggle | Lowest paid plan$5per monthAwesome, as of November 14, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | Main features
|
| draw.ioFree diagramming application where you store your data wherever you want. | ReviewsNone yetWrite one for draw.io | Lowest paid planNot confirmed | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onWeb, Desktop | Main features |
 EraserAI that builds maps and diagrams of your systems from your cloud, code, CMDB and spreadsheets | ReviewsNone yetWrite one for Eraser | Lowest paid plan$15per member per month, billed annually, or $20 monthlyStarter, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | ||
 Excalidraw+Collaborative whiteboard for hand-drawn style diagrams, with a cloud workspace for teams | ReviewsNone yetWrite one for Excalidraw+ | Lowest paid plan$6per user per monthPlus, as of October 19, 2026 | Free planYes | Free trial14 days | Public APIYes | ||
 MindMeisterOnline mind map maker for brainstorming and planning. | ReviewsNone yetWrite one for MindMeister | Lowest paid plan$12per user per monthPersonal, as of November 14, 2026 | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onWeb, iOS, Android | |
 MiroAlign teams and ship what customers need in one AI-powered visual platform | ReviewsNone yetWrite one for Miro | Lowest paid plan$8per member per month, billed annuallyStarter, as of October 19, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | ||
 WhimsicalThe whiteboard for product builders | ReviewsNone yetWrite one for Whimsical | Lowest paid plan$10per editor per month, billed annuallyPro, as of October 20, 2026 | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onWeb, macOS, Windows, Linux | |
 XmindCreate mind maps online or on desktop, brainstorm ideas and plan projects with AI. | ReviewsNone yetWrite one for Xmind | Lowest paid plan$4.29per month, billed annuallyPro, as of November 14, 2026 | Free planYes | Free trial7 days | Public APINot confirmed |
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