Easily switch your browser's User-Agent on any website. Perfect for developers, testers, and users who need to access sites that require a specific browser or device.
Per-site rules - Set different User-Agents for each domain
Wildcard support - Apply rules to all subdomains (e.g., *.example.com)
Preset User-Agents - Choose from popular browsers and devices
Client Hints support - Automatically generates Sec-CH-UA headers for modern websites
No data collection
No external connections
All settings stored locall







