i18n JSON Translation Tool is an AI-powered browser-based utility that translates JSON language files into over 30 languages, preserving the original JSON structure and formatting. It operates entirely within the user's browser, using API keys from providers like DeepSeek, Google, Anthropic, and OpenAI to perform translations without uploading data to any server.
What is i18n JSON Translation Tool?
i18n JSON Translation Tool is a web application that takes a JSON file (up to 10 MB) and a target language, and produces a translated JSON file with the same keys and structure. It runs exclusively client-side, meaning no data leaves the user's machine except API calls directly to the chosen AI provider. The tool is developed and maintained by an independent team (site: jsontrans.fun) and has been featured on Product Hunt, Startup Fame, Fazier, Twelve Tools, Turbo0, and AI Hunt List.
Key Features
- Code Friendly — Automatically formats translated JSON with proper indentation; supports copy and direct download of the result. Learn More
- Multi-language Support — Translates to and from over 30 languages, including English, Simplified Chinese, Traditional Chinese, Japanese, Korean, French, German, Spanish, Russian, and more.









