Unagent User Agent Switcher

Unagent User Agent Switcher is a lightweight developer tool that lets you change your browser user agent instantly. Quickly test how websites render and respond across desktop, mobile, tablet, and crawler profiles without leaving the page. Key features include one click switching from the toolbar, per site rules that auto apply profiles, and support for custom user agent strings with import and export. Ideal for web developers, QA, and SEO teams who need fast, reliable responsive and cross browser testing. Simple, efficient, and unobtrusive, it streamlines debugging of headers, content negotiation, and device specific behavior. Keywords include user agent switcher, developer tools, QA testing, responsive testing, cross browser testing.