head to head · open source
Zen Browser vs WebLibre
Zen Browser has 45,517 GitHub stars, 1,946 forks, 689 open issues and last shipped yesterday. WebLibre has 1,088 stars, 48 forks, 62 open issues and last shipped 4 days ago. Zen Browser leads on adoption by 4,084% (45,517 vs 1,088 stars). Zen Browser is written in C++ under MPL-2.0; WebLibre is written in Dart under AGPL-3.0. Zen Browser has attracted 4% as many forks as stars, WebLibre 4%. Zen Browser was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (firefox), 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
| Zen Browser | WebLibre | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 1.1K |
| License | MPL-2.0 | AGPL-3.0 |
| Written in | C++ | Dart |
| Last push | 2026-11-02 | 2026-10-30 |
| Forks | ⑂ 1.9K | ⑂ 48 |
| 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 WebLibre if
- You want the WebLibre feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Dart
- You evaluated both and WebLibre 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 WebLibre
WebLibre A privacy focused Android browser with powerful browsing separation, local first tools, and deep customization. WebLibre is an independent browser for Android devices, built on Mozilla's Gecko engine and Mozilla Android Components. It combines strong privacy defaults with containers, isolated tabs, built in Tor and proxy routing, Firefox compatible extensions, on device search, and flexible tab management. WebLibre is not a Firefox fork. It is its own browser experience, designed for people who want familiar everyday browsing without giving up control over how sites, identities, and network connections…
read the full WebLibre overview →
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Frequently asked questions
Is Zen Browser or WebLibre more popular?
Zen Browser has 45,517 GitHub stars and WebLibre has 1,088. Zen Browser has the larger community by that measure.
Are Zen Browser and WebLibre free?
Both are open source. Zen Browser is licensed under MPL-2.0 and WebLibre under AGPL-3.0. Neither carries a licence fee.
What is the difference between Zen Browser and WebLibre?
Zen Browser is written in C++ and WebLibre in Dart. 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 WebLibre?
Choose Zen Browser if you want the larger community (45,517 stars) or its MPL-2.0 licence terms. Choose WebLibre if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.