head to head · open source
uBlock vs HackBrowserData
uBlock has 67,923 GitHub stars, 4,353 forks, 15 open issues and last shipped yesterday. HackBrowserData has 14,534 stars, 1,810 forks, 33 open issues and last shipped 17 days ago. uBlock leads on adoption by 367% (67,923 vs 14,534 stars). uBlock is written in JavaScript under GPL-3.0; HackBrowserData is written in Go under MIT. uBlock has attracted 6% as many forks as stars, HackBrowserData 12%. uBlock was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (browser-extension, 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 | HackBrowserData | |
|---|---|---|
| GitHub stars | ★ 68K | ★ 15K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | Go |
| Last push | 2026-09-17 | 2026-09-01 |
| Forks | ⑂ 4.4K | ⑂ 1.8K |
| 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 HackBrowserData if
- You want the HackBrowserData feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and HackBrowserData 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 HackBrowserData
HackBrowserData is an MIT licensed command line tool written in Go that decrypts and exports browser data — passwords, cookies, history, bookmarks, credit cards, downloads, extensions, localStorage and sessionStorage — from Chromium based browsers, Firefox, and Safari for security research on Windows, macOS and Linux.
read the full HackBrowserData overview →
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Frequently asked questions
Is uBlock or HackBrowserData more popular?
uBlock has 67,923 GitHub stars and HackBrowserData has 14,534. uBlock has the larger community by that measure.
Are uBlock and HackBrowserData free?
Both are open source. uBlock is licensed under GPL-3.0 and HackBrowserData under MIT. Neither carries a licence fee.
What is the difference between uBlock and HackBrowserData?
uBlock is written in JavaScript and HackBrowserData in Go. 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 HackBrowserData?
Choose uBlock if you want the larger community (67,923 stars) or its GPL-3.0 licence terms. Choose HackBrowserData if its feature set, stack or MIT licence fits better. Both are self-hostable.