Developer JSON translation
Translate Chrome extension messages.json files
Chrome extension localization has a strict file shape. Translate message text while keeping keys, descriptions, and placeholder metadata predictable.
Useful for _locales/en/messages.json style files
Keeps extension message keys stable
Helps review placeholders before submitting an extension update
A safer JSON translation flow
1
Start from the source messages file
Use your existing _locales/en/messages.json file as the source for translated output.
2
Protect extension-specific terms
Keep product names, browser API labels, permission names, and placeholders unchanged where needed.
3
Test in the extension
Load the translated locale in Chrome and inspect popups, options pages, content scripts, and store-facing copy.