head to head · open source
uBlock vs WebLibre
uBlock has 69,033 GitHub stars, 4,427 forks, 15 open issues and last shipped yesterday. WebLibre has 1,088 stars, 48 forks, 62 open issues and last shipped 4 days ago. uBlock leads on adoption by 6,245% (69,033 vs 1,088 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 4%. 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 | ★ 69K | ★ 1.1K |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | JavaScript | Dart |
| Last push | 2026-11-02 | 2026-10-30 |
| Forks | ⑂ 4.4K | ⑂ 48 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick uBlock if
- You weight community size — 69K 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
[![Badge Commits]][Commit Rate] [![Badge Issues]][Issues] [![Badge Localization]][Crowdin] [![Badge License]][License] [![Badge NPM]][NPM] [![Badge Mozilla]][Mozilla] ![Badge Chrome] [![Badge Edge]][Edge] uBlock Origin (uBO) GitHub Releases Stable and development versions on Firefox, Chromium MV2, and Thunderbird. Must be placed manually into web browsers; the Chromium and Thunderbird versions usually won't auto update. Related: uBlock Origin Lite uBlock Origin (uBO) is a CPU and memory efficient [wide spectrum content blocker][Blocking] for Chromium and Firefox. It blocks ads, trackers, coin miners, popups…
read the full uBlock 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 uBlock or WebLibre more popular?
uBlock has 69,033 GitHub stars and WebLibre has 1,088. 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 (69,033 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.