head to head · open source
uBlock vs WebLibre
uBlock has 67,923 GitHub stars, 4,353 forks, 15 open issues and last shipped yesterday. WebLibre has 985 stars, 34 forks, 62 open issues and last shipped yesterday. uBlock leads on adoption by 6,796% (67,923 vs 985 stars). uBlock is written in JavaScript under GPL-3.0; WebLibre is written in Dart under AGPL-3.0. uBlock has attracted 6% as many forks as stars, WebLibre 3%. uBlock 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
| uBlock | WebLibre | |
|---|---|---|
| GitHub stars | ★ 68K | ★ 985 |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | JavaScript | Dart |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 4.4K | ⑂ 34 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick uBlock if
- You weight community size — 68K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches JavaScript
- 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 uBlock
uBlock Origin is a CPU and memory efficient, wide spectrum content blocker for Chromium and Firefox, aimed at anyone who wants ads, trackers, coin miners, popups, anti blockers and malware sites neutralised by default without hand tuning anything.
read the full uBlock 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 uBlock or WebLibre more popular?
uBlock has 67,923 GitHub stars and WebLibre has 985. uBlock has the larger community by that measure.
Are uBlock and WebLibre free?
Both are open source. uBlock is licensed under GPL-3.0 and WebLibre under AGPL-3.0. Neither carries a licence fee.
What is the difference between uBlock and WebLibre?
uBlock is written in JavaScript 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, uBlock or WebLibre?
Choose uBlock if you want the larger community (67,923 stars) or its GPL-3.0 licence terms. Choose WebLibre if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.