head to head · open source
Zen Browser vs WebLibre
Zen Browser has 44,481 GitHub stars, 1,754 forks, 689 open issues and last shipped yesterday. WebLibre has 985 stars, 34 forks, 62 open issues and last shipped yesterday. Zen Browser leads on adoption by 4,416% (44,481 vs 985 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 3%. 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 | ★ 44K | ★ 985 |
| License | MPL-2.0 | AGPL-3.0 |
| Written in | C++ | Dart |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 1.8K | ⑂ 34 |
| 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 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 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 WebLibre
WebLibre is a libre, privacy first browser for Android built from scratch on Mozilla's Gecko engine and Mozilla Android Components, aimed at Android users who want familiar everyday browsing without giving up control over how sites, identities, and network connections are separated.
read the full WebLibre overview →
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Frequently asked questions
Is Zen Browser or WebLibre more popular?
Zen Browser has 44,481 GitHub stars and WebLibre has 985. 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 (44,481 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.