User-Agent Switcher and Manager

User-Agent Switcher and Manager Extension for Chrome

A Free Developer Tools Extension

Published By rynu.smith

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App Info

  • • Type: Browser Extension
  • • Latest Version: 0.6.4
  • • Price: Freeware
  • • Offline: No
  • • Developer: rynu.smith

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Download Count

  • • Total Downloads
  • 7482
  • • Current Version Downloads
  • 1044
  • • Updated: May 7, 2025

User-Agent Switcher and Manager is a free Developer Tools Extension for Chrome. You could download the latest version crx file or old version crx files and install it.

This extension allows you to reliably spoof your browser "User-Agent" string to a custom one. The extension provides a list of all well-known "User-Agent" strings for different browsers and operating systems.

Notes:
1. You can set or reset custom "User-Agent" string from the toolbar popup
2. The extension uses two techniques to mimic your default "User-Agent" string which is the most reliable ways.
3. This extension does not use any resource when it is disabled from the toolbar popup.
4. As of version 0.1.4, it is possible to have per-site user-agent strings.
5. As of version 0.2.2, it is possible to have a random user-agent string being set from the provided list. Go to the options page to change the mode to "Custom".
6. As of version 0.2.4, it is possible to set UA string just for a single browser window. You can have different UA strings for different browser windows. All new tabs in the window will keep using the defined UA string

For technical bug reports please use:
https://github.com/ray-lothian/UserAgent-Switcher/

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