head to head · open source
Zen Browser vs browser-agent
Zen Browser has 45,517 GitHub stars, 1,946 forks, 689 open issues and last shipped yesterday. browser-agent has 4,138 stars, 245 forks, 34 open issues and last shipped 9 months ago. Zen Browser leads on adoption by 1,000% (45,517 vs 4,138 stars). Zen Browser is written in C++ under MPL-2.0; browser-agent is written in TypeScript under Apache-2.0. Zen Browser has attracted 4% as many forks as stars, browser-agent 6%. Zen Browser was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Zen Browser | browser-agent | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 4.1K |
| License | MPL-2.0 | Apache-2.0 |
| Written in | C++ | TypeScript |
| Last push | 2026-11-02 | 2026-02-08 |
| Forks | ⑂ 1.9K | ⑂ 245 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Zen Browser if
- You weight community size — 46K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick browser-agent if
- You want the browser-agent feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and browser-agent fits your workflow better
About Zen Browser
Zen Browser Zen is a firefox based browser with the aim of pushing your productivity to a new level! Download • Website • Documentation • Release Notes Firefox Versions Release Is currently built using Firefox version 155.0.1 ! Twilight Is currently built using Firefox version RC 155.0.1 ! Contributing If you'd like to report a bug, please do so on our GitHub Issues page and for feature requests, you can use GitHub Discussions. Zen is an open source project, and we welcome contributions from the community! Please take a look at the contribution guidelines before getting started! Partners Thanks to all the…
read the full Zen Browser overview →
About browser-agent
🚀 New: Magnitude is state of the art, scoring 94% on WebVoyager! Magnitude uses vision AI to enable you to control your browser with natural language. 🧭 Navigate Sees and understands any interface to plan out actions 🖱️ Interact Executes precise actions using mouse and keyboard 🔍 Extract Intelligently extracts useful structured data ✅ Verify Built in test runner with powerful visual assertions You can use it to automate tasks on the web, integrate between apps without APIs, extract data, test your web apps, or as a building block for your own browser agents. ↕️ Magnitude in action! ↕️ Get started Running…
read the full browser-agent overview →
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Frequently asked questions
Is Zen Browser or browser-agent more popular?
Zen Browser has 45,517 GitHub stars and browser-agent has 4,138. Zen Browser has the larger community by that measure.
Are Zen Browser and browser-agent free?
Both are open source. Zen Browser is licensed under MPL-2.0 and browser-agent under Apache-2.0. Neither carries a licence fee.
What is the difference between Zen Browser and browser-agent?
Zen Browser is written in C++ and browser-agent in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Zen Browser or browser-agent?
Choose Zen Browser if you want the larger community (45,517 stars) or its MPL-2.0 licence terms. Choose browser-agent if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.