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Sitr

A halal/family content filter browser extension whose privacy you can verify, not just trust — all filtering happens on your device, with a public blocklist and reproducible builds.

Sitr — A halal/family content filter browser extension whose privacy you can verify, not just trust — all filtering happens on your device, with a public blocklist and reproducible builds.

Interested in Sitr?

Available as a SaaS subscription or managed deployment. Let's discuss how it fits your needs.

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About this project

Sitr (سِتْر) is a Manifest V3 browser extension that blocks adult, gambling, and dating sites and enforces SafeSearch (Google, Bing, DuckDuckGo) and YouTube Restricted Mode — entirely on the user's device, using the browser's declarativeNetRequest engine. It is private by construction: browsing history never leaves the browser, the extension makes no per-request server calls, and there are no ad networks, analytics SDKs, or telemetry of any kind. The blocklist is identical for every user and published openly, with a documented inclusion policy and appeals process. Deterministic builds turn the public domain lists into shipped rulesets byte-reproducibly, with published checksums so anyone can rebuild and verify. If protection isn't provably active, the extension shows a visible "Protection INACTIVE" badge — it never pretends.

Tech Stack

Browser Extension Manifest V3 TypeScript Privacy Open Source

Status

In Progress