head to head · open source
uBlock vs SingleFile
uBlock has 69,033 GitHub stars, 4,427 forks, 15 open issues and last shipped yesterday. SingleFile has 22,811 stars, 1,432 forks, 101 open issues and last shipped yesterday. uBlock leads on adoption by 203% (69,033 vs 22,811 stars). uBlock is written in JavaScript under GPL-3.0; SingleFile is written in JavaScript under AGPL-3.0. uBlock has attracted 6% as many forks as stars, SingleFile 6%. uBlock was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (firefox), 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 | SingleFile | |
|---|---|---|
| GitHub stars | ★ 69K | ★ 23K |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | JavaScript | JavaScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 4.4K | ⑂ 1.4K |
| 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 SingleFile if
- You want the SingleFile feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and SingleFile 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 SingleFile
SingleFile SingleFile helps you to save a complete web page into a single HTML file. SingleFile is a Web Extension (and a CLI tool) compatible with Chrome, Firefox (Desktop and Mobile), Microsoft Edge, Safari, Vivaldi, Brave, Waterfox, Yandex browser, and Opera. Table of Contents SingleFile Table of Contents Demo Install Getting started Additional notes FAQ Release notes Known Issues and Troubleshooting Command Line Interface (SingleFile CLI) Integration with user scripts File format comparison Projects using/compatible with SingleFile Privacy Policy Contributors Code derived from third party projects Icons…
read the full SingleFile overview →
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Frequently asked questions
Is uBlock or SingleFile more popular?
uBlock has 69,033 GitHub stars and SingleFile has 22,811. uBlock has the larger community by that measure.
Are uBlock and SingleFile free?
Both are open source. uBlock is licensed under GPL-3.0 and SingleFile under AGPL-3.0. Neither carries a licence fee.
What is the difference between uBlock and SingleFile?
uBlock is written in JavaScript and SingleFile 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 SingleFile?
Choose uBlock if you want the larger community (69,033 stars) or its GPL-3.0 licence terms. Choose SingleFile if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.