1. React Developer Tools
Inspect React component trees, props and state.
Why it replaces User-Agent Switcher and Manager: Another Developer Tools extension worth comparing against User-Agent Switcher and Manager.
Best User-Agent Switcher and Manager Alternatives in 2026
User-Agent Switcher and Manager is a strong option, but it is not the right fit for everyone. Below are 7 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
About User-Agent Switcher and Manager
Spoof websites trying to gather information about your web navigation to deliver distinct content you may not want.
Comparison at a glance
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| User-Agent Switcher and Manager (original) | 4.3 | 400K+ | Free | |
| React Developer Tools | 3.9 | 5M+ | Free | React developers debugging component state and render performance. |
| Wappalyzer | 4.6 | 3M+ | Freemium | Developers, agencies and sales teams researching what a site is built with. |
| Take Webpage Screenshots Entirely - FireShot | 4.8 | 3M+ | Free | Anyone who needs fast, reliable full-page screenshots for work, support or documentation. |
| JSON Formatter | 4.3 | 2M+ | Free | Anyone poking at REST APIs directly in the browser. |
| Web Developer | 4.5 | 1M+ | Free | Web developers who want quick access to common debugging tools without opening DevTools. |
| Web Scraper | 4.1 | 800K+ | Freemium | Marketers and analysts pulling structured data from sites |
| Extensions Reloader | 4.4 | 10K+ | Free |
User-Agent Switcher and Manager alternatives in detail
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2. Wappalyzer
Identifies the technology stack behind any website.
Why it replaces User-Agent Switcher and Manager: Another Developer Tools extension worth comparing against User-Agent Switcher and Manager.
3. Take Webpage Screenshots Entirely - FireShot
Take FULL webpage screenshots. Capture, edit and save them to PDF/JPEG/GIF/PNG, upload, print, send to OneNote, clipboard or email.
Why it replaces User-Agent Switcher and Manager: Another Developer Tools extension worth comparing against User-Agent Switcher and Manager.
4. JSON Formatter
Makes raw JSON responses readable in the browser.
Why it replaces User-Agent Switcher and Manager: Another Developer Tools extension worth comparing against User-Agent Switcher and Manager.
5. Web Developer
Adds a toolbar button with various web developer tools.
Why it replaces User-Agent Switcher and Manager: Another Developer Tools extension worth comparing against User-Agent Switcher and Manager.
6. Web Scraper
Point-and-click scraper that exports site data to CSV.
Why it replaces User-Agent Switcher and Manager: Another Developer Tools extension worth comparing against User-Agent Switcher and Manager.
7. Extensions Reloader
Reload all unpacked extensions using the extension's toolbar button or by browsing to "http://reload.extensions"
Why it replaces User-Agent Switcher and Manager: Another Developer Tools extension worth comparing against User-Agent Switcher and Manager.
Compare User-Agent Switcher and Manager head-to-head
Direct comparisons with the extensions people weigh against it.
Wappalyzer vs JSON FormatterStack detection for recon work against readable API responses in the browser.React Developer Tools vs WappalyzerBoth are developer tools extensions people shortlist together — see how ratings, install base, pricing and day-to-day use differ.React Developer Tools vs JSON FormatterBoth are developer tools extensions people shortlist together — see how ratings, install base, pricing and day-to-day use differ.All comparisonsThe full compare hub, grouped by category.
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Frequently asked questions
What is the best alternative to User-Agent Switcher and Manager?
React Developer Tools is the closest match. Another Developer Tools extension worth comparing against User-Agent Switcher and Manager.
Is there a free alternative to User-Agent Switcher and Manager?
Yes — React Developer Tools, Take Webpage Screenshots Entirely - FireShot, JSON Formatter are free.
Why switch away from User-Agent Switcher and Manager?
Common reasons are pricing, missing sync or team features, and specific limitations: Some features require a paid plan; Requests access to the sites you visit.