head to head · open source
uBlock vs gosub-engine
uBlock has 67,937 GitHub stars, 4,354 forks, 15 open issues and last shipped 2 days ago. gosub-engine has 3,685 stars, 180 forks, 43 open issues and last shipped yesterday. uBlock leads on adoption by 1,744% (67,937 vs 3,685 stars). uBlock is written in JavaScript under GPL-3.0; gosub-engine is written in Rust under MIT. uBlock has attracted 6% as many forks as stars, gosub-engine 5%. gosub-engine was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | gosub-engine | |
|---|---|---|
| GitHub stars | ★ 68K | ★ 3.7K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | Rust |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 4.4K | ⑂ 180 |
| 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 gosub-engine if
- You want the gosub-engine feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Rust
- You evaluated both and gosub-engine 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 gosub-engine
Gosub is an embeddable, asynchronous browser engine written in Rust, aimed at developers who want to build browsing capability into their own application by supplying a render backend and compositor rather than embedding a full browser.
read the full gosub-engine overview →
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Frequently asked questions
Is uBlock or gosub-engine more popular?
uBlock has 67,937 GitHub stars and gosub-engine has 3,685. uBlock has the larger community by that measure.
Are uBlock and gosub-engine free?
Both are open source. uBlock is licensed under GPL-3.0 and gosub-engine under MIT. Neither carries a licence fee.
What is the difference between uBlock and gosub-engine?
uBlock is written in JavaScript and gosub-engine in Rust. 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 gosub-engine?
Choose uBlock if you want the larger community (67,937 stars) or its GPL-3.0 licence terms. Choose gosub-engine if its feature set, stack or MIT licence fits better. Both are self-hostable.