Roundup
The best free website blocker with no subscription.
Plenty of blockers are free to start, then ask for a monthly fee the second you want anything useful. The ones below actually block sites without a subscription, and the table shows where each one stops.
The best free website blocker with no subscription is GoFlow Focus Guard, because it is free, has no recurring fee, and blocks your chosen sites automatically when a focus round starts. LeechBlock NG and SelfControl are also free with no subscription. Cold Turkey and BlockSite have free tiers but charge for the strong features.
What counts as no subscription?
For this list, "no subscription" means you can block the sites you care about without a recurring fee. That rules out tools where blocking is locked behind a monthly plan. It includes fully free tools and tools with a one-time purchase or a free tier that still does the core job. The goal is simple: keep distracting sites out while you work, without paying every month for the privilege.
The shortlist
GoFlow Focus Guard
A free browser extension paired with the GoFlow focus app. You set your blocklist in GoFlow, and Focus Guard blocks those sites the moment a work round starts, then unblocks them when it ends. No subscription, no account, data stays on your device. Best for: people who want blocking tied to a focus timer instead of running all day. Limits: desktop Chrome, Edge, and Brave only, websites not phone apps, and no cross-device sync. See how it works.
LeechBlock NG
A free, open browser extension with detailed time rules: block sites at certain hours, after a daily limit, or on a schedule. Best for: people who like fine-grained rules and tinkering. Limits: setup can feel fiddly, and blocking is not tied to a focus timer, so it runs on its own schedule.
SelfControl
A free, open Mac app that blocks a list of sites for a set time and cannot be undone until the timer ends, even if you restart. Best for: Mac users who want a hard, time-boxed block. Limits: Mac only, no Pomodoro timer or tracking, and once it is running you truly cannot stop it.
Cold Turkey free tier
The free version of Cold Turkey blocks sites on Windows and Mac, with the strongest locks and scheduling reserved for Pro. Best for: a free desktop blocker you may upgrade later. Limits: the best features are paid, and it is a single-computer tool.
BlockSite free tier
A popular browser extension with a free tier for basic blocking and a paid plan for more. Best for: quick, simple site blocking in the browser. Limits: features like scheduling and password locks lean paid, and the free tier is limited.
Quick comparison
| Blocker | Free | No subscription | Timer-gated | Platform |
|---|---|---|---|---|
| GoFlow Focus Guard | Yes | Yes | Yes | Chrome, Edge, Brave |
| LeechBlock NG | Yes | Yes | No, time rules | Browser |
| SelfControl | Yes | Yes | Set timer | Mac |
| Cold Turkey free | Partly | Yes, one-time Pro | No | Windows, Mac |
| BlockSite free | Partly | Free tier | No | Browser, mobile |
This is a snapshot, not gospel. Features and prices move, so confirm details on each tool's own site.
Which one should you pick?
If you want blocking to switch on and off with your focus sessions, GoFlow Focus Guard is the natural fit since the timer triggers it. If you prefer rules by time of day, LeechBlock NG. If you want a hard Mac block you cannot escape, SelfControl. If you are on a single desktop and might pay later for tougher locks, Cold Turkey. Match the trigger style to how you actually work.
Blocking that turns on when you do
GoFlow Focus Guard is free, has no subscription, and blocks your sites the moment a focus round starts.
Open GoFlow freeCommon questions
Is GoFlow Focus Guard free forever?
Yes. It is free with no subscription and no account. You manage your blocklist inside the GoFlow app.
Do I need to install anything?
The GoFlow app runs in your browser with nothing to install. The Focus Guard extension is a quick one-time load to enable blocking on desktop.
Can these block sites on my phone?
Most of these block desktop browser sites. GoFlow Focus Guard runs on desktop Chrome, Edge, and Brave. Phone app blocking usually needs a paid cross-device tool.
Which is hardest to bypass?
SelfControl on Mac and Cold Turkey Pro are known for hard locks. GoFlow aims to remove the easy slip rather than be unbreakable.