How to Block Ads on Mac System-Wide (3 Methods Compared)
Browser extensions like uBlock Origin only block ads inside that one browser. Open a different app, a game, or even another browser, and the ads come right back. If you want system-wide ad blocking that covers every app on your Mac, you need a different approach.
Here are the three ways to block ads across your entire Mac. Choose the one that fits your setup.
Install an ad blocker extension in each browser you use. uBlock Origin is the most popular and effective. It works great inside that browser but has no effect on other apps.
- ✓ Free and open source
- ✓ Excellent in-browser blocking
- ✓ Easy to install
- ✗ Only blocks ads in one browser
- ✗ No protection for other apps
- ✗ Need separate extensions per browser
Pi-hole runs on a Raspberry Pi or server and filters DNS queries for your entire network. It blocks ads on every device, but requires hardware setup, network configuration, and ongoing maintenance.
- ✓ Blocks ads on all network devices
- ✓ Open source
- ✗ Requires dedicated hardware
- ✗ Complex network configuration
- ✗ Doesn't work outside your home
- ✗ Requires ongoing maintenance
SaneHosts blocks ads at the system level by managing your Mac's /etc/hosts file. Every app, every browser, every connection. No hardware, no network changes, and it works everywhere your Mac goes.
- ✓ System-Wide: Blocks ads in every app, not just browsers
- ✓ 200+ Blocklists: Curated sources from AdGuard, Hagezi, StevenBlack, and more
- ✓ One Click: Choose a protection level, activate, done
- ✓ Portable: Works on Wi-Fi, hotspot, VPN, anywhere
Compatible with macOS 14 (Sonoma) and later.