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Tolgee — A localization platform connecting in-context editing, SDKs, translation management, AI, and MCP

OSS health 96
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Stars
4,100
Primary language
TypeScript
License
Not determined
Repository last updated
Sep 16, 2026

Overview

Tolgee goes beyond translation-key storage by connecting in-context editing, screenshots, translation memory, machine translation, an AI translator, SDKs, CLI tooling, and MCP. It is available as both cloud and self-hosted software. The latest release as of September 16, 2026 is v3.222.0.

Features and best fit

Based on official documentation; not hands-on tested · Content checked:

Edit translations from the running product instead of constantly switching between files and a translation console

With a Tolgee SDK integrated into an app, translators and developers can ALT/Option-click visible strings to edit translations and capture screenshots with the relevant phrase highlighted. This keeps UI context close to the translation itself.

Sources: [2]

Bring translation memory, machine translation, AI context, and MCP into the localization workflow

Tolgee supports machine-translation providers including DeepL, Google Translate, AWS Translate, and Azure Translator, alongside translation memory and automatic translation. Its AI translator can use screenshots and project/key context, while the MCP server lets coding assistants search keys, update translations, manage languages, and trigger translation operations.

Sources: [2]

For teams that want developers and translators to share one localization source of truth with product context intact

It fits teams using framework integrations, APIs, and CLI workflows that want code, CI, and translator work connected to one localization platform. It can also serve as a self-hosted alternative to hosted translation-management services.

Sources: [2]

The repository is not uniformly Apache-2.0: Enterprise Edition directories use the Tolgee EE License

The root license assigns ee/ and webapp/src/ee to the Tolgee EE License and defaults other content to Apache-2.0. Tolgee EE License v1 is centered on non-commercial use and restricts hosted/managed services and license-key circumvention. The repository license is therefore kept as NOASSERTION in OSS Tanbou.

Sources: [3][4]

Self-hosting adds database, backup, upgrade, and license-plan responsibilities

Official docs recommend Docker Compose and explain that free self-hosting includes core features while advanced functionality can require a licensed plan. The docs also warn that Tolgee v4 removes the bundled PostgreSQL database from the tolgee/tolgee image, so instances that rely on it need to migrate to external PostgreSQL before upgrading.

Sources: [6][7]

Official sources

  1. [1]tolgee/tolgee-platform — GitHub repository metadata(2026-09-16)
  2. [2]Tolgee Platform — README(2026-09-16)
  3. [3]Tolgee Platform — root LICENSE(2026-09-16)
  4. [4]Tolgee Platform — Enterprise Edition License(2026-09-16)
  5. [5]Tolgee v3.222.0 release(2026-09-16)
  6. [6]Tolgee — Self-hosting getting started(2026-09-16)
  7. [7]Tolgee — Running with Docker(2026-09-16)
Supplemental curator note

Its strongest differentiator is bringing application context into translation workflows through SDKs. Self-hosters should review the EE license boundary and the PostgreSQL migration required before v4.

Try it in 3 steps

  1. 1

    Start a local evaluation container

    The single-container path is for quick evaluation. Use the official Docker Compose setup with external PostgreSQL for production or persistent deployments.

    docker run --name tolgee -v tolgee_data:/data -p 8085:8080 tolgee/tolgee
  2. 2

    Read the initial password

    Retrieve the initial sign-in credential from the container.

    docker exec tolgee cat /data/initial.pwd
  3. 3

    Create a localization project

    Create a project, add languages and keys, then follow the SDK integration guide. Review the external-PostgreSQL migration requirement before a v4 upgrade.

    http://localhost:8085 → Sign in → Create project
Check the official README

Growth

Growth trends · Last 30 days

4,100 Stars

Trend data is still being collected.

Development activity

Last 90 days · weekly

Commits (last 30 days)
52
Open PRs
29

Development activity is still being collected.

Built with

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GitHub data

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GitHub Topics

  • localization
  • localization-tool
  • internationalization
  • i18n
  • i18next
  • l10n
  • react
  • javascript
  • angular
  • vue
  • svelte
  • translation-management
Stars
4,100
Forks
368
Watchers
16
Open issues
166
Primary language
TypeScript
License
Not determined
Repository last updated
Sep 16, 2026
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Tolgee — Open Localization Platform with Self-Hosting, AI, and MCP | OSS Tanbou