Compare i18n Translation Files

Compare JSON translation files side-by-side. Detect missing keys, analyze translation coverage, and streamline your localization workflow with visual diffing.

Browser Tool Free Localisation MIT License
Open Comparison Tool

Streamlined translation management

Side-by-Side Comparison

Upload two JSON locale files and see exactly which keys match, differ, or are missing.

Missing Key Detection

Toggle filters to show only missing keys and focus on incomplete translations.

Repository Integration

Configure repository URLs and web app base URLs for direct navigation to translation contexts.

Mapping File Support

Upload mapping files to link translation keys to specific routes and code locations.

Drag & Drop Upload

Simple drag-and-drop interface for loading JSON files quickly.

Translation Groups

Organized comparison view with translation groups for easy navigation.

Get started in seconds

Open the tool

Click "Open Comparison Tool" to launch the translator in a new tab.

Upload files

Drag and drop or click to upload your original and translation JSON files.

Configure settings

Optionally add repository URL and web app base URL for deep linking.

Compare

View side-by-side comparison with missing key highlighting and filters.

Add mapping (optional)

Upload a mapping file to link keys to routes for easier navigation.

Streamline your localization workflow

Open the tool in a new tab or browse more tools in the garden.