Qontract Localize

Instantly translate your JSON localisation files (i18n, l10n) directly in your browser — even on GitHub, GitLab, or any webpage. Qontract helps developers, translators, and product teams manage multilingual apps faster with AI-driven translation and real-time previews.

What it does

• Translate JSON files instantly — detects and translates i18n keys and values in JSON files with just one click

• Real-time preview — see translated results immediately before saving

• Preserves JSON structure — keeps your key/value pairs perfectly formatted

• Context-aware AI — understands placeholders, variable names, and syntax so nothing breaks

• Multiple languages supported — translate between 25+ languages, including English, German, Japanese, Polish, and more

Use Cases

• Developers maintaining multilingual SaaS or web apps

• Localization managers verifying translations before deployment

• Open-source contributors translating project files directly on GitHub

• Product teams testing UI copy in different languages without switching tools

Why Install Qontract?

• Save hours by automating repetitive translation work

• Boost accuracy with AI trained for localisation data

• No need for external tools — everything happens inside your browser

• Ideal for i18n workflows in frameworks like React, Vue, Angular, and Next.js

• Privacy-focused — your JSON data stays protected, only translation text is processed

Perfect For

• Frontend and full-stack developers

• SaaS builders and startups

• Localization teams and translators

• Open-source maintainers