tolgee-platform

Tolgee is a localization management system. Developers push translation keys from code, translators fill in the values through a web UI, and Tolgee syncs everything back. It even lets translators click on text in your running app and edit translations in context.

The self-hosted version is free and open source. You get the translation management UI, in-context translation editing (translators see your actual app and click to translate), machine translation integration (DeepL, Google, AWS), translation memory, and SDKs for React, Angular, Vue, Svelte, and more.

Tolgee Cloud has a free tier (1,000 strings, 1 project), a Pay as You Go plan at $0.20/string/mo, and a Business tier at $0.35/string/mo with advanced features. Solo: overkill unless you're managing 5+ languages. Small teams: self-host free for collaborative translation. Growing teams: this is where Tolgee shines. Large orgs: compare with Crowdin and Lokalise.

The catch: for small projects with a few languages, managing JSON files manually or using i18next is simpler. Tolgee's value kicks in when you have multiple translators, frequent updates, and need to coordinate translations across a team. The in-context editor requires their SDK integration, which adds a dependency to your frontend.