OSS Discovery

CA
Canada
SECURITY & PRIVACY
CLOUD-READY
ACTIVELY MAINTAINED
FREE
uBlock Origin

UBLOCK ORIGIN

uBlock Origin is a premium ad blocker for Firefox and Chromium-based browsers, leveraging advanced filtering engines to deliver fast, lightweight blocking with minimal resource usage, ensuring optimal browsing efficiency and privacy through customizable rules and seamless extension integration. (49 words)

GITHUB STARS
63k
+12% this month
FORKS
4k
Active community
LAST PUSH
Apr 24, 2026
High momentum
WATCHERS
1k
Tracking updates
LICENSE
GPL-3.0
Commercial use
**uBlock Origin** is a blocker that blocks ads and trackers. It is built for users who need to protect their privacy while browsing. It runs on Firefox and Chromium-based browsers.

High Performance

Built for speed and minimal overhead.

Self-hostable

Docker, Kubernetes, or bare metal

Developer Native

Programmable via any language workflow

SUPPORTED LANGUAGES

JavaScript
JavaScript
CSS
CSS
HTML
HTML
WebAssembly
WebAssembly
Shell
Shell
Makefile
Makefile
Python
Python

VISUAL INTERFACE

Screenshot 1
Screenshot 2
Screenshot 3

The Quick Glance

Status
Active
Category
Security & Privacy
Pricing
Free
Self-Hosted
No
Available on
Web
Latest Release
1.70.0
Mar 11, 2026

Relative Standing — across 1,284 tools

STARS63k
Top 3% globally
FORKS4k
Top 10% in Open Source
ACTIVITYHigh
Top 38% Activity
WATCHERS1k
Top 1% Community