Listed alphabetically. A tool is ranked by its reviews once it has 3.
Localization tools with a public API Tool Reviews Lowest paid plan Free plan Free trial Public API Runs on Main features Crowdin AI-powered localization platform for multilingual organizations. Reviews None yet Write one for Crowdin Lowest paid plan $75 Pro, as of November 13, 2026 Free plan YesFree trial 14 daysPublic API YesRuns on Not confirmed Main features AI translation Git integrations Built-in QA checks LingoHub A localization platform that connects your content, translation workflows, and delivery. Reviews None yet Write one for LingoHub Lowest paid plan €209 per month, billed yearly Platform, as of November 14, 2026 Free plan Not confirmed Free trial 14 daysPublic API YesLocalazy Go international with software and content localization on autopilot. Reviews None yet Write one for Localazy Lowest paid plan $34 per month, billed annually Professional, as of November 13, 2026 Free plan YesFree trial 14 daysPublic API YesLocalize An AI-powered, no-code translation solution for websites, web apps, UI and help docs. Reviews None yet Write one for Localize Lowest paid plan Not confirmed Free plan Not confirmed Free trial Not confirmed Public API YesRuns on Web Main features POEditor A translation management system for seamless software localization, blending AI and human expertise. Reviews None yet Write one for POEditor Lowest paid plan $20 per month, billed monthly Start, as of November 13, 2026 Free plan YesFree trial Not confirmed Public API YesSmartling AI-powered translation software with real language experts for the judgment calls. Reviews None yet Write one for Smartling Lowest paid plan Not confirmed Free plan YesFree trial Not confirmed Public API YesRuns on Not confirmed Tolgee Open-source localization platform developers enjoy working with. Reviews None yet Write one for Tolgee Lowest paid plan $66 per month, billed annually Translate, as of November 13, 2026 Free plan YesFree trial Not confirmed Public API YesTransifex AI localization that scales your growth, not your overhead. Reviews None yet Write one for Transifex Lowest paid plan Not confirmed Free plan Not confirmed Free trial Not confirmed Public API YesRuns on iOS, Android Main features Weblate A privacy-respecting, open source localization platform that connects to your repository. Reviews None yet Write one for Weblate Lowest paid plan Not confirmed Free plan Not confirmed Free trial 14 daysPublic API YesRuns on Web
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 public API. 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