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Tolgee

Summary

The company behind the Tolgee Platform, an open-source developer- and translator-friendly localization platform with SDK integration, in-context editing, and MCP server support for AI coding assistants.

Key Facts

  • Founded: ~2020
  • GitHub: github.com/tolgee/tolgee-platform — 3,863 stars, 100 contributors
  • License: Apache 2.0
  • Latest release: v3.179.3 (April 2026) — 904 releases total
  • Stack: Kotlin/Spring Boot backend, TypeScript/Angular frontend, PostgreSQL
  • Website: tolgee.io

Notable Features

  • First localization platform with native MCP server for AI coding assistants
  • In-context editing — Alt+Click to translate in the running app
  • SDKs for JavaScript, React, Vue, Angular, Svelte, PHP, Flutter, iOS, Android
  • Tolgee CLI for automatic watch and pull of translation changes