head to head · open source
chrome-devtools-mcp vs UserAgent-Switcher
chrome-devtools-mcp has 54,665 GitHub stars, 5,250 forks, 109 open issues and last shipped yesterday. UserAgent-Switcher has 1,543 stars, 200 forks, 150 open issues and last shipped 3 days ago. chrome-devtools-mcp leads on adoption by 3,443% (54,665 vs 1,543 stars). chrome-devtools-mcp is written in TypeScript under Apache-2.0; UserAgent-Switcher is written in JavaScript under MPL-2.0. chrome-devtools-mcp has attracted 10% as many forks as stars, UserAgent-Switcher 13%. chrome-devtools-mcp was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (chrome), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| chrome-devtools-mcp | UserAgent-Switcher | |
|---|---|---|
| GitHub stars | ★ 55K | ★ 1.5K |
| License | Apache-2.0 | MPL-2.0 |
| Written in | TypeScript | JavaScript |
| Last push | 2026-11-02 | 2026-10-31 |
| Forks | ⑂ 5.3K | ⑂ 200 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick chrome-devtools-mcp if
- You weight community size — 55K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick UserAgent-Switcher if
- You want the UserAgent-Switcher feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and UserAgent-Switcher fits your workflow better
About chrome-devtools-mcp
Chrome DevTools for agents Chrome DevTools for agents ( chrome devtools mcp ) lets your coding agent (such as Antigravity, Claude, Cursor or Copilot) control and inspect a live Chrome browser. It acts as a Model Context Protocol (MCP) server, giving your AI coding assistant access to the full power of Chrome DevTools for reliable automation, in depth debugging, and performance analysis. A [CLI][cli] is also provided for use without MCP. [Tool reference][tool reference] [Changelog][changelog] [Contributing][contributing] [Troubleshooting][troubleshooting] [Design Principles][design principles] Key features Get…
read the full chrome-devtools-mcp overview →
About UserAgent-Switcher
UserAgent Switcher A highly configurable browser extension for spoofing your User Agent string. UserAgent Switcher modifies both the User Agent in your browser's request headers and relevant JavaScript navigator properties (e.g., navigator.userAgent , navigator.appVersion , navigator.platform ). It also supports modern browser identification mechanisms such as Client Hints headers and the navigator.userAgentData object, ensuring consistent and comprehensive spoofing across all detection methods. Key Features Comprehensive Spoofing: Modifies both HTTP request headers and JavaScript navigator objects. Granular…
read the full UserAgent-Switcher overview →
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Frequently asked questions
Is chrome-devtools-mcp or UserAgent-Switcher more popular?
chrome-devtools-mcp has 54,665 GitHub stars and UserAgent-Switcher has 1,543. chrome-devtools-mcp has the larger community by that measure.
Are chrome-devtools-mcp and UserAgent-Switcher free?
Both are open source. chrome-devtools-mcp is licensed under Apache-2.0 and UserAgent-Switcher under MPL-2.0. Neither carries a licence fee.
What is the difference between chrome-devtools-mcp and UserAgent-Switcher?
chrome-devtools-mcp is written in TypeScript and UserAgent-Switcher in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, chrome-devtools-mcp or UserAgent-Switcher?
Choose chrome-devtools-mcp if you want the larger community (54,665 stars) or its Apache-2.0 licence terms. Choose UserAgent-Switcher if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.