head to head · open source
uBlock vs ublacklist
uBlock has 67,923 GitHub stars, 4,353 forks, 15 open issues and last shipped yesterday. ublacklist has 6,639 stars, 347 forks, 2 open issues and last shipped 5 days ago. uBlock leads on adoption by 923% (67,923 vs 6,639 stars). uBlock is written in JavaScript under GPL-3.0; ublacklist is written in TypeScript under MIT. uBlock has attracted 6% as many forks as stars, ublacklist 5%. uBlock was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (blocker, browser-extension), 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 | ublacklist | |
|---|---|---|
| GitHub stars | ★ 68K | ★ 6.6K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-13 |
| Forks | ⑂ 4.4K | ⑂ 347 |
| 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 ublacklist if
- You want the ublacklist feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and ublacklist 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 ublacklist
uBlacklist is a browser extension that blocks specific sites from appearing in search engine results. It is written in TypeScript, licensed under MIT, and lives in the WebExtensions ecosystem, with published builds for Chrome, Firefox, Edge, and Safari on macOS and iOS. The project has been maintained for roughly eight years and carries 6,636 stars and 347 forks on GitHub, with two open issues at the time of writing. Its homepage and documentation live at ublacklist.github.io.
read the full ublacklist overview →
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Frequently asked questions
Is uBlock or ublacklist more popular?
uBlock has 67,923 GitHub stars and ublacklist has 6,639. uBlock has the larger community by that measure.
Are uBlock and ublacklist free?
Both are open source. uBlock is licensed under GPL-3.0 and ublacklist under MIT. Neither carries a licence fee.
What is the difference between uBlock and ublacklist?
uBlock is written in JavaScript and ublacklist 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, uBlock or ublacklist?
Choose uBlock if you want the larger community (67,923 stars) or its GPL-3.0 licence terms. Choose ublacklist if its feature set, stack or MIT licence fits better. Both are self-hostable.