User-Agent Switcher and Manager

A configurable browser extension that changes the User-Agent string the browser reports, globally or per site.

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About User-Agent Switcher and Manager

User-Agent Switcher and Manager spoofs the identity your browser presents to websites. It changes the User-Agent sent in request headers and the matching JavaScript properties such as navigator.userAgent, navigator.appVersion and navigator.platform, so pages see a consistent picture.

It also handles newer identification methods, including Client Hints headers and the navigator.userAgentData object. Web developers use it to test how sites respond to other browsers and devices, and others use it to get past sites that refuse a particular browser.

Strengths

  • Changes both request headers and JavaScript navigator properties
  • Supports Client Hints and navigator.userAgentData
  • Global or per-site rules

Limitations

  • Spoofing can break sites that rely on accurate browser detection
  • Does not hide other fingerprinting signals

Details

Pricing
FreeFree to install.
License
Proprietary
Developer
Ray Lothian
Platforms
Browser extension
How it runs
Browser extension
Account
Not required
Best suited for
Web developers testing sites as other browsers or devices
Last verified
Added
Provenance
Facts checked against the developer's own pages and store listings, 1 sources on file.

Alternatives to User-Agent Switcher and Manager

Compare all

Software that can replace User-Agent Switcher and Manager for an important use case, and what changes if you switch.

  • Chameleon

    A Firefox extension that spoofs the browser profile and user agent to make fingerprinting harder.

    Chameleon is built for Firefox and spoofs the wider browser profile as well as the user agent, aiming at fingerprinting resistance rather than developer testing.

  • ModHeader

    A browser extension for modifying HTTP request and response headers and cookies while testing.

    ModHeader edits request and response headers and cookies with URL, tab or resource filters, but does not describe changing JavaScript navigator properties or Client Hints.

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