What is Tolgee used for?

Tolgee is an open-source web-based localization platform with in-context translation, SDKs and machine translation, positioned as an alternative to Crowdin, Phrase and Lokalise. It is a good fit for localizing web apps with developer-friendly workflows, letting translators edit text in context and replacing Crowdin or Lokalise.

Is Tolgee open source?

Yes. Tolgee is open source under a custom licence. Its source code is on GitHub at tolgee/tolgee-platform and is written mainly in TypeScript.

Yes. Tolgee is open source, so the software itself is free to use under the terms of its own licence. Paid plans are also available, starting at €58 per month.

Can I self-host Tolgee?

Yes. Tolgee can be self-hosted on your own server or infrastructure.

What is Tolgee an alternative to?

Tolgee is an open-source alternative to Crowdin, Lokalise, Phrase and Transifex. Other open-source alternatives to Crowdin include Weblate, Lingo.dev and Pontoon.

Is Tolgee actively maintained?

Yes. The most recent commit to Tolgee was on 2 October 2026, and the latest release is v3.224.11, published on 1 October 2026. The project has 4.1k stars on GitHub.

Tolgee: open-source alternative to Crowdin, Lokalise, Phrase

About Tolgee

Tolgee is an open-source, web-based localization platform made to be friendly to both developers and translators. It is presented as an alternative to Crowdin, Phrase and Lokalise, with the aim of saving the time that localization tasks usually take.

Its distinctive feature is in-context translation: holding the Alt or Option key and clicking a text in your running app opens a dialog for editing the string, without digging through JSON or PO files. A one-click screenshot feature captures the page with the phrases highlighted, and translation works in production using the Tolgee Tools Chrome plugin with an API key, so non-developers can contribute.

Instead of only syncing files with a backend, Tolgee integrates into the app through SDKs for frameworks such as React, Angular, Vue and Svelte. Machine translation is available through DeepL, Google Translate, AWS Translate and Azure Translator, which speeds up the work of translators. The platform is written mainly in TypeScript.

Key features

In-context translation via Alt-click
One-click screenshots of translated strings
Translate in production with a Chrome plugin
SDKs for React, Angular, Vue and Svelte
Machine translation with DeepL and Google
Translation management API

Good fit for

→Localizing web apps with developer-friendly workflows
→Letting translators edit text in context
→Replacing Crowdin or Lokalise

Built with: TypeScript; React; JavaScript; Angular; Vue; Svelte
Tags: localization; i18n; l10n; translation-management; internationalization; react; machine-translation; typescript

Tolgee: questions and answers

What is Tolgee used for?: Tolgee is an open-source web-based localization platform with in-context translation, SDKs and machine translation, positioned as an alternative to Crowdin, Phrase and Lokalise. It is a good fit for localizing web apps with developer-friendly workflows, letting translators edit text in context and replacing Crowdin or Lokalise.
Is Tolgee open source?: Yes. Tolgee is open source under a custom licence. Its source code is on GitHub at tolgee/tolgee-platform and is written mainly in TypeScript.
Is Tolgee free?: Yes. Tolgee is open source, so the software itself is free to use under the terms of its own licence. Paid plans are also available, starting at €58 per month.
Can I self-host Tolgee?: Yes. Tolgee can be self-hosted on your own server or infrastructure.
What is Tolgee an alternative to?: Tolgee is an open-source alternative to Crowdin, Lokalise, Phrase and Transifex. Other open-source alternatives to Crowdin include Weblate, Lingo.dev and Pontoon.
Is Tolgee actively maintained?: Yes. The most recent commit to Tolgee was on 2 October 2026, and the latest release is v3.224.11, published on 1 October 2026. The project has 4.1k stars on GitHub.