SiteBlocker comparisons
See exactly how SiteBlocker stacks up against every popular website blocker, side by side and honestly.
SiteBlocker gives every blocking feature away free with no site limit, including section blocking for YouTube Shorts and Instagram Reels. BlockSite caps free users at three sites, Freedom charges $8.99 a month, Cold Turkey is a paid desktop app, and StayFocusd and LeechBlock are free but Chrome-first with no real sync.
All entries last checked .
Every blocker, side by side
| Blocker | Free tier | Paid | Platforms |
|---|---|---|---|
| SiteBlocker | Free — every blocking feature, no site limit | Pro $2.99/mo · $24.99/yr · $49.99 lifetime | Chrome, Firefox |
| BlockSite | Free, capped at 3 blocked sites | $14.99/mo · $29.99/yr · $49.99 lifetime (frequent promos, region-varying) | Chrome, Edge, Firefox, iOS, Android, Windows (no Safari) |
| Freedom | Free, but sessions are capped (no scheduling, no locked mode) | $8.99/mo · about $39.96/yr · $99.50 lifetime | Chrome, Firefox, Edge, Safari, macOS, Windows, iOS, Android |
| Cold Turkey | Free (website blocking, timed blocks, stats) | About $39 one-time (single device) / $49 (unlimited) | Windows, macOS (desktop app only; no mobile, no extension) |
| StayFocusd | Free | No paid tier | Chrome, Edge (no Firefox, no Safari) |
| LeechBlock NG | Free and open source | No paid tier | Firefox, Chrome, Edge and other Chromium browsers (no mobile) |
Prices are list prices in USD and change often, especially BlockSite's, which runs frequent regional promotions. Each comparison page links its sources.
Choosing a website blocker: FAQ
What is the best free website blocker?
For a free blocker with no feature gates, SiteBlocker and LeechBlock NG are the two strongest. SiteBlocker adds cross-device sync, an insights dashboard, Firefox support and section blocking; LeechBlock NG is open source and more configurable but has no sync and a steeper interface.
Which website blockers work on Firefox?
SiteBlocker, Freedom and LeechBlock NG all support Firefox. BlockSite and StayFocusd are Chromium-only, and Cold Turkey is a desktop application rather than an extension.
Which blocker can block YouTube Shorts without blocking YouTube?
SiteBlocker does this with a free section switch that blocks Shorts pages and hides the Shorts shelf. LeechBlock NG can block the youtube.com/shorts path with a hand-written rule but does not hide the entry points. Most other blockers work at whole-domain level only.
Do free website blockers collect your browsing data?
Some do. BlockSite collects user data, and StayFocusd is now owned by the mobile analytics company Sensor Tower. SiteBlocker, Cold Turkey and LeechBlock NG collect no browsing data.
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