head to head · open source
uBlock vs Screenity
uBlock has 67,923 GitHub stars, 4,353 forks, 15 open issues and last shipped yesterday. Screenity has 18,703 stars, 1,521 forks, 8 open issues and last shipped 2 days ago. uBlock leads on adoption by 263% (67,923 vs 18,703 stars). uBlock is written in JavaScript under GPL-3.0; Screenity is written in JavaScript under GPL-3.0. uBlock has attracted 6% as many forks as stars, Screenity 8%. uBlock was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (javascript), 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 | Screenity | |
|---|---|---|
| GitHub stars | ★ 68K | ★ 19K |
| License | GPL-3.0 | GPL-3.0 |
| Written in | JavaScript | JavaScript |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 4.4K | ⑂ 1.5K |
| 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 Screenity if
- You want the Screenity feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and Screenity 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 Screenity
Screenity is a JavaScript Chrome extension under the GPL 3.0 license that records the screen and supports annotation in the browser. It lives in the Chrome extension ecosystem and is distributed through the Chrome Web Store, while its source code is available on GitHub.
read the full Screenity overview →
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Frequently asked questions
Is uBlock or Screenity more popular?
uBlock has 67,923 GitHub stars and Screenity has 18,703. uBlock has the larger community by that measure.
Are uBlock and Screenity free?
Both are open source. uBlock is licensed under GPL-3.0 and Screenity under GPL-3.0. Neither carries a licence fee.
What is the difference between uBlock and Screenity?
uBlock is written in JavaScript and Screenity in JavaScript. 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 Screenity?
Choose uBlock if you want the larger community (67,923 stars) or its GPL-3.0 licence terms. Choose Screenity if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.