Tolgee

A self-hosted localization platform where developers and translators manage app strings together, as an alternative to Crowdin, Phrase or Lokalise.

4.2k stars, 381 forks TypeScript On GitHub since October 2020

Visit website View on GitHub How to run it

Tolgee at a glance

Open sourceYes, Apache-2.0Some paid parts in the repository
Health78 of 100Actively developed
Self-hostingDockerCompose file, 3 services
Interface17 languagesIncluding English, German and French
Issue repliesWithin ~32 hoursMedian first reply; 80% of recent issues answered

What is Tolgee?

Tolgee is a web platform for translating software. Its SDKs embed it into your application, so a translator can hold ALT or Option, click a piece of text in the running app and edit the string in a dialog instead of digging through JSON or PO files. The same trick takes screenshots with the phrase highlighted. Suggestions come from translation memory, from DeepL, Google Translate, AWS Translate or Azure Translator, and from an AI translator that reads screenshots, key descriptions and language notes. An activity log, per-key history, comments, a CLI and an MCP server for coding assistants round it out.

Good fit if

  • Your team keeps translation files in the repository and wants non-developers to fix strings directly inside the product.
  • You pay per seat or per key for a hosted localization service and would rather run your own instance.
  • You want new keys translated automatically from memory or a machine service the moment they are created.

Look elsewhere if

  • You prefer a translation tool built around syncing with Git repositories and a long-running community project: Weblate.

Before you adopt it

Most of the code is under Apache-2.0, but the ee/ and webapp/src/ee directories carry a separate enterprise license, so those features are paid. The license has stayed the same since the repository began. The company Tolgee s.r.o. backs the work, and six people committed in the last 90 days, with releases shipping often. The interface is available in 17 languages. Self-hosting uses Docker; the bundled compose file runs it alongside PostgreSQL.

Drafted with AI from the project's README and repository data, then checked against that data on 7 November 2026. Report a correction

How to run Tolgee yourself

Docker
Dockerfile or compose file in the repository
Compose file
docker/docker-compose.yml: 3 services (postgres)
Setup effort
2 of 5, judged from the compose file
Kubernetes
No Helm chart in the repository
Desktop and mobile
No app builds in GitHub releases
Interface languages
17 languages, including English, German, French, Spanish, Portuguese, Dutch, Polish, Russian, Ukrainian and Japanese
Show all 17

Chinese, Czech, Danish, Dutch, English, French, German, Hungarian, Japanese, Polish, Portuguese, Romanian, Russian, Slovak, Spanish, Ukrainian, Welsh

Install instructions: tolgee.io or the README on GitHub.

Tolgee health: is it still maintained?

78 of 100, actively developed

Release rhythmAlmost dailyLatest: v3.242.4, 6 November 2026
Issue repliesWithin ~32 hoursMedian first reply; 80% of recent issues answered
Bus factorLow riskThe most active of 6 authors wrote 44% of recent commits
  • Activity
    181 commits in the last 90 days, the latest on 6 November 2026.
    27 / 30
  • Contributors
    6 people wrote the latest 100 commits; the most active wrote 44% of them.
    11 / 20
  • Releases
    15+ releases in the last 12 months; the latest, v3.242.4, on 6 November 2026.
    19 / 20
  • Replies to issues
    Maintainers answered 80% of recent issues, with a median first reply after 32 hours.
    16 / 20
  • Security practices
    No OpenSSF Scorecard for this repository yet, so this part gets a neutral score.
    5 / 10

Read from GitHub on 7 November 2026. How the score works

Tolgee license: is it open source?

Tolgee uses Apache-2.0, an open-source license approved by the OSI. Some features sit under a separate paid license inside the same repository.

  1. October 2020First published on GitHub.
  2. TodayApache-2.0, with paid parts: license file assigns a different licence to part of the code; directory backend/api/src/main/kotlin/io/tolgee/hateoas/ee/; directory ee/; directory ee/backend/app/src/main/kotlin/io/tolgee/ee/; directory webapp/src/ee/.

Tolgee for developers

Written in

  • TypeScript 55%
  • Kotlin 44%
  • Python <1%
  • JavaScript <1%
  • Shell <1%
  • Other <1%

Getting involved

Contributing guideYesCONTRIBUTING.mdOpen issues175On GitHub
Authors, 90 days6Of the latest 100 commits
DonationsGitHub SponsorsListed on GitHub

Language shares are GitHub’s count of the code in the repository.

Alternatives to Tolgee

  • WeblateWeb based localization tool with tight version control integration. 75 health · GPL-3.0 · 6.2k stars
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Questions about Tolgee

Is Tolgee open source?

Yes. Tolgee is published under Apache-2.0, an OSI-approved open-source license. Some features are kept under a separate paid license in the same repository.

Is Tolgee still maintained?

Its health score is 78 of 100 (actively developed). It had 181 commits in the last 90 days, the latest on 6 November 2026, and its latest release came out on 6 November 2026.

How do I run Tolgee?

You can run it with Docker. The README on GitHub has the exact steps.

What is Tolgee written in?

Tolgee is written mainly in TypeScript (55% of the code), with Kotlin (44%), by GitHub’s count of the repository.

What languages is Tolgee available in?

The repository has interface translations for 17 languages, including English, German, French, Spanish, Portuguese, Dutch, Polish and Russian.

What are the alternatives to Tolgee?

Close alternatives in the Developer tools category include Weblate, Flagsmith, Gotify.