Locale Switcher
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Lets you quickly switch the browser locale to test localization on your website.

🌏 Locale Switcher Browser Extension to quickly change your browser locale. ❓ What does it do? When a locale chosen the following thinks will be adjusted: navigator.language navigator.languages Accept-Language headers ✨ Features Chrome & Firefox Support for 700+ languages and variations Per tab basis Favorite your most used locales Fully shortcut enabled, no mouse needed (Windows: Ctrl+Shift+L / Mac: Cmd+Shift+L) Questions or feedback? Please email us at locale-switcher-publishers@googlegroups.com or open an issue on GitHub: https://github.com/locale-switcher/locale-switcher.

4.4 out of 567 ratings

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Adam RocFeb 20, 2024

Awesome project. Thanks a lot

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Daniel SantanaJan 1, 2024

Amazing tool! great job and thanks for that

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Ivan CastellanosDec 25, 2023

Doesn't work with Intl.DateTimeFormat().resolvedOptions().locale

1 person found this review to be helpful


  • Version
  • Updated
    December 26, 2022
  • Offered by
    Locale Switcher
  • Size
  • Languages
    English (United States)
  • Developer
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes


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