1Blocker
1Blocker is a Safari content blocker for Apple devices that helps remove ads, trackers, cookie banners, and other web annoyances while you browse.
What is 1Blocker?
1Blocker is a privacy and content-blocking app for Safari on Apple devices, including Mac. It helps users reduce ads, web trackers, cookie banners, and other on-page annoyances while browsing in Safari and in-app browsers that use Apple’s Safari tools. On macOS, it combines Safari content-blocking extensions with a Safari web extension called 1Blocker Scripts for harder-to-block elements such as some video ads and site annoyances. The app also includes tools such as per-site allow listing, visibility into what is being blocked, custom filters, and filter syncing across supported devices. 1Blocker is built for people who want a cleaner Safari experience, stronger privacy while browsing, and more control over what loads on websites.
Key features
- Block ads, trackers, cookie banners, and other annoyances in Safari
- Use advanced Safari extension filters for harder-to-block page elements
- Allow ads or disable blocking on specific websites you trust
- See what Safari blocking features are active on your Mac
- Import and export custom filters for more tailored blocking
- Sync filters and settings across supported Apple devices
- Review blocking history and activity inside the app
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
1Blocker is a legitimate Safari-focused content blocker distributed through Apple’s App Store ecosystem. Its Safari extensions and blocking behavior are consistent with its purpose. On Mac, the main privacy consideration is that browser extensions can read and modify webpage content in Safari in order to block ads and trackers. Review Safari extension permissions, keep only the filters you want, and remember that its main web-blocking features are designed for Safari rather than Chrome or Firefox.
Recommendation: Keep 1Blocker if you use Safari on your Mac and want cleaner pages, fewer trackers, and more control over site content. If you no longer use Safari or prefer another blocker, you can remove it without affecting macOS itself, though your custom filters and browsing exceptions may be lost.
Common paths
/Applications/1Blocker.app
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