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Tolgee

In‑context translation platform that lets developers edit strings live

Tolgee lets you translate directly inside your app with a single ALT‑click, supports machine translation, translation memory, activity logs, and integrates via SDKs for seamless i18n workflow.

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Overview

Highlights

In‑context editing with ALT‑click directly in the application
Machine translation support (DeepL, Google, AWS) with auto‑translation
Translation memory for consistent reuse of prior translations
Comprehensive activity log, comments, and version history

Pros

  • Speeds up localization by eliminating separate file edits
  • Works in production environments for real‑time updates
  • Integrates via SDKs for many front‑end frameworks
  • Supports major machine‑translation providers

Considerations

  • Initial SDK integration adds a setup step
  • Production editing requires the Chrome plugin and API key
  • Advanced features may need a self‑hosted deployment
  • Relies on external MT services for auto‑translation

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Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.

Fit guide

Great for

  • Front‑end developers needing quick in‑app translation
  • Teams combining developers and translators in a shared workflow
  • Projects that require live translation updates in production
  • Organizations preferring a self‑hosted localization solution

Not ideal when

  • Small static sites with minimal translation needs
  • Teams without JavaScript/TypeScript expertise
  • Projects that must operate completely offline
  • Companies looking for a built‑in commercial billing system

How teams use it

Live translation of a React dashboard

Translators edit strings directly in the UI; changes appear instantly for all users.

Automated localization of new feature flags

New keys are auto‑translated using machine translation and translation memory, reducing manual effort.

Collaboration between developers and linguists on a production site

Comments, activity logs, and version history keep everyone aligned on translation decisions.

Self‑hosted deployment for a regulated industry

Data remains on‑premises while leveraging the full Tolgee feature set.

Tech snapshot

TypeScript58%
Kotlin42%
JavaScript1%
Shell1%
Dockerfile1%
PLpgSQL1%

Tags

sveltei18ntranslations-apil10nvuelocalizationhacktoberfesttranslationsinternationalizationreacttranslation-managementi18nextangularjavascripttranslationlocalization-tool

Frequently asked questions

How does in‑context editing work?

Hold ALT/Option and click any UI element; a dialog opens where you can modify the string. The Chrome plugin enables this in production.

Which machine translation services are supported?

Tolgee integrates with DeepL, Google Translate, and AWS Translate.

Is there a self‑hosted option?

Yes, you can run Tolgee on your own servers or use the hosted SaaS at app.tolgee.io.

What frameworks are supported?

SDKs are available for JavaScript, React, Angular, Vue, Svelte, and other front‑end libraries.

How is translation consistency ensured?

The translation memory suggests existing translations with similarity scores, helping maintain consistent phrasing.

Project at a glance

Active
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3,743
Watchers
3,743
Forks
330
Repo age5 years old
Last commit2 days ago
Primary languageTypeScript

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