head to head · open source
uBlock vs gosub-engine
uBlock has 69,033 GitHub stars, 4,427 forks, 15 open issues and last shipped yesterday. gosub-engine has 3,690 stars, 185 forks, 43 open issues and last shipped yesterday. uBlock leads on adoption by 1,771% (69,033 vs 3,690 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%. uBlock 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 | ★ 69K | ★ 3.7K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | Rust |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 4.4K | ⑂ 185 |
| 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 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
[![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 gosub-engine
Gosub Browser Engine An embeddable, async browser engine written in Rust. Join us on our development Zulip chat, or our Discord server for general chat. If you'd like to contribute, start with the contribution guide. About Gosub is a modular, embeddable browser engine. The primary entry point is GosubEngine in the gosub engine crate. You provide a render backend and a compositor; the engine owns a multi zone/tab model, an async networking stack, cookie and storage isolation per zone, and an event bus. Your user agent (UA) drives everything via TabCommand and reacts to EngineEvent . Core components: For the full…
read the full gosub-engine overview →
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Frequently asked questions
Is uBlock or gosub-engine more popular?
uBlock has 69,033 GitHub stars and gosub-engine has 3,690. 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 (69,033 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.