A privacy-first content blocker that works entirely offline. No servers, no tracking, no compromises.
Three layers of defense to keep you safe
Blocks known adult domains before the page even starts loading using browser-level APIs.
Smart keyword scoring system analyzes page content in real-time with minimal performance impact.
Pauses media, blurs images, and displays blocking overlays the moment inappropriate content is detected.
Everything runs locally on your device. No data ever leaves your browser.
Choose between Low, Standard, and Strict modes to match your preferences.
Smart scoring means fewer false positives
PureGuard works on your phone too
Requires iOS 15+. Build via Xcode to install locally.
Install the .xpi extension file directly in Firefox.
Supports full Chrome extensions on Android.
Download PureGuard and take back control of your browsing experience.
Download for All BrowsersExtract the zip and load as an unpacked extension in developer mode.