How to Block Pornography on Mac (Free System-Wide Guide)
Whether you're setting up a computer for a child or practicing self-discipline, blocking adult content on macOS is a common need. Browser extensions (like "BlockSite") are easy to bypass—any savvy user can just disable the extension or use a private window.
To truly block access, you need to cut it off at the system level. Here are three ways to do it.
You can use the StevenBlack "Porn" blocklist (a massive text file of adult domains) and paste it into your system hosts file.
sudo nano /etc/hosts
You will need to copy 100,000+ lines of text into this file. Warning: Handling this many lines in nano can be slow or crash the terminal.
- ✓ Completely free
- ✓ Effective blocking
- ✗ Hard to update (new sites appear daily)
- ✗ Risk of system lag with huge files
- ✗ No easy way to temporarily disable
You can change your Mac's DNS settings to use a "Family Safe" provider like OpenDNS Family Shield or CleanBrowsing.
- ✓ Blocks categories automatically
- ✓ No software to install
- ✗ Can be bypassed by changing DNS back
- ✗ Does not work if you use a VPN
- ✗ Slows down all browsing slightly
SaneHosts makes the hosts file method usable. It downloads the massive "StevenBlack Porn" list for you, parses it safely, and locks it behind Touch ID.
- ✓ Touch ID Locked: Prevents easy bypassing (requires auth)
- ✓ Family Safe Preset: One click to set up
- ✓ Fast: Uses optimized local parsing, no lag
- ✓ Auto-Updates: Keeps the blocklist fresh
Compatible with macOS 14 (Sonoma) and later.