head to head · open source
uBlock vs slate
uBlock has 69,033 GitHub stars, 4,427 forks, 15 open issues and last shipped yesterday. slate has 31,747 stars, 3,306 forks, 653 open issues and last shipped 6 days ago. uBlock leads on adoption by 117% (69,033 vs 31,747 stars). uBlock is written in JavaScript under GPL-3.0; slate is written in TypeScript under MIT. uBlock has attracted 6% as many forks as stars, slate 10%. 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 | slate | |
|---|---|---|
| GitHub stars | ★ 69K | ★ 32K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-11-02 | 2026-10-28 |
| Forks | ⑂ 4.4K | ⑂ 3.3K |
| 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 slate if
- You want the slate feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and slate 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 slate
A completely customizable framework for building rich text editors. Why? · Principles · Demo · Examples · Documentation · Contributing! Slate lets you build rich, intuitive editors like those in Medium, Dropbox Paper or Google Docs—which are becoming table stakes for applications on the web—without your codebase getting mired in complexity. It can do this because all of its logic is implemented with a series of plugins, so you aren't ever constrained by what is or isn't in "core". You can think of it like a pluggable implementation of contenteditable built on top of React. It was inspired by libraries like…
read the full slate overview →
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Frequently asked questions
Is uBlock or slate more popular?
uBlock has 69,033 GitHub stars and slate has 31,747. uBlock has the larger community by that measure.
Are uBlock and slate free?
Both are open source. uBlock is licensed under GPL-3.0 and slate under MIT. Neither carries a licence fee.
What is the difference between uBlock and slate?
uBlock is written in JavaScript and slate 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 slate?
Choose uBlock if you want the larger community (69,033 stars) or its GPL-3.0 licence terms. Choose slate if its feature set, stack or MIT licence fits better. Both are self-hostable.