Locale Switcher

Name: Locale Switcher
Rating: 4.364864864864865 (74 reviews)
Author: Locale Switcher

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

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Locale Switcher Browser Extension

Locale Switcher is a powerful browser extension designed to help developers and testers quickly change their browser locale settings to test website localization. It seamlessly adjusts critical locale-related parameters including navigator.language, navigator.languages, and the Accept-Language headers.

Key Features:

Compatible with both Chrome and Firefox browsers.
Supports over 700 languages and locale variations.
Locale changes can be applied on a per-tab basis, providing flexibility.
Allows favoriting frequently used locales for quick access.
Fully shortcut-enabled for efficiency (Windows: Ctrl+Shift+L, Mac: Cmd+Shift+L), enabling hands-free switching.

This extension streamlines internationalization testing by simulating different user locales easily and efficiently. For questions or feedback, users are encouraged to contact the team via email or GitHub.

Extension Developer Tools Productivity Programming

By:

Users:

Rating:

Version:

1.3.1 Last updated: 2025-03-06

Creation date:

2019-05-14

Risk:

Permissions:

storage
declarativeNetRequest
activeTab

Size:

104.45K

Email:

lo*****@googlegroups.com

Full description:

Source:

Chrome Web Store

Updated:

14 hours ago

Ranking

# 3,983 ▲ 98

Other rankings

#1649 in Developer Tools ▲ 3

#29 in language keyword 45 ▼ 5

#39 in browser settings keyword 41 ▲ 4

#99 in browser extension keyword 70 ▲ 8

#129 in browser keyword 92 ▼ 11

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Other platforms

Locale Switcher (v1.3.0)

1,652 4.40

(5)

User reviews

Locale Switcher is highly valued by developers for quickly changing browser language settings during multi-language testing, offering favorites and simplified language names. However, recent updates introduced problems: the shift from global to per-tab locale settings annoys many, causing repeated selections; UI changes are confusing; and some experience failures in language changes without manual reloads. Compatibility with newest Chrome is also a concern due to Manifest V2 usage. Users appreciate the tool's utility but urge the developer to restore global setting options and improve reliability and clarity.

Pros

Effectively switches locales and languages for web development and testing purposes.
Offers useful options such as per-tab or global locale setting and ability to select favorite languages.
Simplifies language selection by showing plain language names instead of complicated locale codes.
Saves significant time for developers working on multi-language sites or apps.
Free, open-source, and respects user privacy without collecting data.

Cons

Recent versions sometimes fail to apply language changes immediately, requiring manual page reloads.
The new per-tab locale setting option replaces global settings, which frustrates many users who preferred the old global default.
User interface changes in recent updates are confusing, lacking clear explanations or tooltips for controls.
Compatibility issues with latest Chrome versions and certain APIs like Intl.DateTimeFormat().
Extension uses Manifest V2 which will be deprecated soon, risking removal from Chrome Web Store without updates.

Recent reviews

Probé varios y este es el único que funciona realmente. Tiene varias opciones que los otros carecen, por ejemplo mantener la selección activada (varios no la persisten al cerrar la extensión), hacer que el seteo sea global o solo la pestaña actual (lo cual es muy útil) o la opción de ver solo los idiomas favoritos y no el listado completo que puede ser muy engorroso para localizar el idioma que necesitamos. Por otra parte los idiomas aparecen de forma sencilla, aquí eliges "Ingles" o "Español", en otras extensiones tienes que elegir por ejemplo entre EN_US o ES_UY, lo cual puede ser confuso (si quiero español, ¿cuál selecciono? ES_UY? ES_LA? ES_X?) . Me tomé la molestia de escribir todo esto solo porque lo merece

Ca*****, 2025-02-11

非常还用但是马上chrome不支持了使用匿名检测网站的时候打开的新标签页会失效要重新加载新页面大佬能更新一下吗谢谢了

Be*****, 2024-12-30

Locale Switcher uses MV2 and will soon be removed from the Chrome Web Store. As an alternative, I have created an MV3 extension called Cloaq. Cloaq is free, open-source, ad-free, and does not collect any user data. https://chromewebstore.google.com/detail/fcalilbnpkfikdppppppchmkdipibalb

Cl*****, 2024-12-28

View all user reviews ›

Extension safety

Risk impact

Locale Switcher requires very minimum permissions.

Risk impact analysis details

High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.

Risk likelihood

Locale Switcher has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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