LocalePack

LocalePack translates Chrome extension messages and exports the localized files as a ZIP.

localepack.app
LocalePack homepage screenshot

About LocalePack

LocalePack translates a Chrome extension source messages.json file into selected target languages and exports the results as a ZIP containing _locales/{lang}/messages.json files. It checks the file against the Chrome extension format, preserves placeholder syntax and structure, and uses description fields as context for translation.

Use is limited to Chrome extension messages.json files up to 500KB. Translation runs after payment via Stripe, with the final quote calculated after upload based on string length and languages selected.

Key features

  • Uploads source messages.json and validates Chrome extension format
  • Translates message fields into selected target languages
  • Preserves $PLACEHOLDER$ syntax and placeholders structure
  • Uses description fields as context for translations
  • Exports _locales/{lang}/messages.json files as ZIP
  • Processes selected languages in parallel after Stripe payment
Best for: Chrome extension developers who need to translate a messages.json file into multiple locales.
Good for
  • Handles message, description, and placeholders fields in Chrome messages.json
  • Preserves placeholder syntax across languages
  • Outputs ZIP with _locales/{lang}/messages.json folder structure
Watch out for
  • Accepts only Chrome extension messages.json files up to 500KB
  • Translation starts only after payment
  • Final price is shown only after file upload

LocalePack at a glance

Type
Online tool
Pricing
Not confirmed. Check the site
Platforms
Browser extension, Web
Open source
Not stated
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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LocalePack FAQ

What do I need to upload?
A source messages.json file in Chrome extension format, up to 500KB.
What do I receive?
A ZIP containing _locales/{lang}/messages.json files for the selected languages.
When does translation start and how long does it take?
Translation starts after payment via Stripe. The site states most jobs complete in under 5 minutes.
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