Custom User-Agents
Create and manage User-Agent strings with a built-in generator for desktop, mobile, and bot templates.
Master Web Testing with AgentShift v3.0
The ultimate Chrome extension for developers: switch User-Agent strings, customize per-site, track history, and add custom headers with zero data collection.
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Powerful Features for Web Developers
Per-Site Switching
Apply unique User-Agents to specific domains for precise browser compatibility testing.
Random Mode
Cycle through User-Agents automatically for dynamic testing across devices and browsers.
History Tracking
Log User-Agent changes with timestamps, exportable for analysis and debugging.
Custom Headers
Add custom request headers for advanced web testing scenarios.
Dark Mode Support
Switch between dark, light, or system themes for a comfortable testing experience.
Explore AgentShift v3.0 in Action
Intuitive popup for seamless User-Agent switching
Customize per-site settings and generate User-Agents
Track and export your User-Agent history
Frequently Asked Questions
What is AgentShift v3.0?
AgentShift v3.0 is a Chrome extension designed for developers to modify User-Agent strings for web testing and browser compatibility, with no data collection.
How does per-site switching work?
Assign specific User-Agents to domains via the popup for targeted testing without affecting other sites.
Is AgentShift secure?
Yes, all settings are stored locally, and no data is collected or transmitted. See our Privacy Policy.
Is AgentShift free?
Completely free with no ads, subscriptions, or in-app purchases.
Can I add custom headers?
Yes, AgentShift supports custom request headers like Accept-Language for advanced testing.
How do I generate User-Agents?
Use the built-in generator to create templates for desktop, mobile, tablet, bots, or custom platforms.
What Developers Say About AgentShift
"AgentShift v3.0's per-site switching and random mode are must-haves for browser testing."
"The history tracking and agent generator make my job so much easier. Highly recommend!"
"Dark mode and custom headers are fantastic. AgentShift is my go-to for web testing."
Elevate Your Web Testing Today
Join thousands of developers using AgentShift v3.0 to streamline browser testing. Download now, completely free!
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