head to head · open source
Zen Browser vs chatGPTBox
Zen Browser has 45,517 GitHub stars, 1,946 forks, 689 open issues and last shipped yesterday. chatGPTBox has 10,772 stars, 881 forks, 211 open issues and last shipped yesterday. Zen Browser leads on adoption by 323% (45,517 vs 10,772 stars). Zen Browser is written in C++ under MPL-2.0; chatGPTBox is written in JavaScript under MIT. Zen Browser has attracted 4% as many forks as stars, chatGPTBox 8%. 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 | chatGPTBox | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 11K |
| License | MPL-2.0 | MIT |
| Written in | C++ | JavaScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.9K | ⑂ 881 |
| 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 chatGPTBox if
- You want the chatGPTBox feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and chatGPTBox 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 chatGPTBox
ChatGPTBox Deep ChatGPT integrations in your browser, completely for free. [![license][license image]][license url] [![release][release image]][release url] [ ][release url] [![verify][verify image]][verify url] [![coverage][coverage image]][coverage url] English Indonesia 简体中文 日本語 Türkçe Install [![Chrome][Chrome image]][Chrome url] [![Edge][Edge image]][Edge url] [![Firefox][Firefox image]][Firefox url] [![Safari][Safari image]][Safari url] [![Android][Android image]][Android url] [![GitHub][Github image]][Github url] Guide Preview [Development & Contributing][dev url] Video Demonstration Credits [dev url]…
read the full chatGPTBox overview →
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Frequently asked questions
Is Zen Browser or chatGPTBox more popular?
Zen Browser has 45,517 GitHub stars and chatGPTBox has 10,772. Zen Browser has the larger community by that measure.
Are Zen Browser and chatGPTBox free?
Both are open source. Zen Browser is licensed under MPL-2.0 and chatGPTBox under MIT. Neither carries a licence fee.
What is the difference between Zen Browser and chatGPTBox?
Zen Browser is written in C++ and chatGPTBox 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, Zen Browser or chatGPTBox?
Choose Zen Browser if you want the larger community (45,517 stars) or its MPL-2.0 licence terms. Choose chatGPTBox if its feature set, stack or MIT licence fits better. Both are self-hostable.