head to head · open source
Zen Browser vs chathub
Zen Browser has 44,481 GitHub stars, 1,754 forks, 689 open issues and last shipped yesterday. chathub has 10,652 stars, 1,116 forks, 16 open issues and last shipped 7 months ago. Zen Browser leads on adoption by 318% (44,481 vs 10,652 stars). Zen Browser is written in C++ under MPL-2.0; chathub is written in TypeScript under GPL-3.0. Zen Browser has attracted 4% as many forks as stars, chathub 10%. 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 | chathub | |
|---|---|---|
| GitHub stars | ★ 44K | ★ 11K |
| License | MPL-2.0 | GPL-3.0 |
| Written in | C++ | TypeScript |
| Last push | 2026-09-17 | 2026-02-27 |
| Forks | ⑂ 1.8K | ⑂ 1.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Zen Browser if
- You weight community size — 44K 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 chathub if
- You want the chathub feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and chathub fits your workflow better
About Zen Browser
Zen Browser is a privacy focused, open source web browser built on Firefox’s Gecko engine. It inherits Firefox’s compatibility and extension ecosystem while introducing a streamlined interface and productivity oriented features. The project lives in the desktop browser ecosystem, targeting users who want a Firefox based experience with reduced clutter and enhanced customization.
read the full Zen Browser overview →
About chathub
ChatHub is an open source browser extension that puts multiple AI chatbots inside one interface. Written in TypeScript under the GPL 3.0 license, it lives in the Chrome and Edge extension ecosystem, with a companion web app at chathub.gg. The repository has been active for roughly four years, has collected more than ten thousand stars and about eleven hundred forks, and carries a small number of open issues.
read the full chathub overview →
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Frequently asked questions
Is Zen Browser or chathub more popular?
Zen Browser has 44,481 GitHub stars and chathub has 10,652. Zen Browser has the larger community by that measure.
Are Zen Browser and chathub free?
Both are open source. Zen Browser is licensed under MPL-2.0 and chathub under GPL-3.0. Neither carries a licence fee.
What is the difference between Zen Browser and chathub?
Zen Browser is written in C++ and chathub 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 chathub?
Choose Zen Browser if you want the larger community (44,481 stars) or its MPL-2.0 licence terms. Choose chathub if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.