head to head · open source
Zen Browser vs Browser Operator
Zen Browser has 45,517 GitHub stars, 1,946 forks, 689 open issues and last shipped yesterday. Browser Operator has 516 stars, 83 forks, 15 open issues and last shipped 8 months ago. Zen Browser leads on adoption by 8,721% (45,517 vs 516 stars). Zen Browser is written in C++ under MPL-2.0; Browser Operator is written in TypeScript under BSD-3-Clause. Zen Browser has attracted 4% as many forks as stars, Browser Operator 16%. 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 Operator | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 516 |
| License | MPL-2.0 | BSD-3-Clause |
| Written in | C++ | TypeScript |
| Last push | 2026-11-02 | 2026-03-19 |
| Forks | ⑂ 1.9K | ⑂ 83 |
| 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 Operator if
- You want the Browser Operator feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches TypeScript
- You evaluated both and Browser Operator 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 Operator
Open source, privacy focused AI browser that transforms how you work on the web. An intelligent platform for research, analysis, and automation—running locally in your browser. Download • Docs • Community 🚀 Getting Started ⬇️ Download for macOS ⬇️ Download for Windows System Requirements: macOS 10.15+ or Windows 10 (64 bit)+ • 8GB RAM (16GB recommended) • 2GB free disk space AI Provider Setup Quick Setup: Settings → Select provider → Enter credentials → Choose model → Save 🎬 What You Can Do Multi Agent Automation – Specialized AI agents work together to handle complex web tasks autonomously Privacy First – All…
read the full Browser Operator overview →
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Frequently asked questions
Is Zen Browser or Browser Operator more popular?
Zen Browser has 45,517 GitHub stars and Browser Operator has 516. Zen Browser has the larger community by that measure.
Are Zen Browser and Browser Operator free?
Both are open source. Zen Browser is licensed under MPL-2.0 and Browser Operator under BSD-3-Clause. Neither carries a licence fee.
What is the difference between Zen Browser and Browser Operator?
Zen Browser is written in C++ and Browser Operator 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 Operator?
Choose Zen Browser if you want the larger community (45,517 stars) or its MPL-2.0 licence terms. Choose Browser Operator if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.