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LeechBlock

The original browser lock: schedules, sets, a block you wrote — Freedom's more extension-native cousin for people who still live in the tab.

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Preview of LeechBlock

Overview

LeechBlock is Freedom if the lock should be an extension: write the set, schedule the hour, stay in the tab. Cold Turkey freezes the OS; this freezes the browser.

You can still use another browser. The product is the list you wrote. If the tab is the enemy, this is the lock. If the whole machine is, Cold Turkey.

Pros / Cons

Pros

  • Free
  • You write the block set
  • Schedules that stick
  • The original browser lock

Cons

  • Browser only
  • You can switch browsers
  • Looks old

Who it's for

01

A free browser lock for an hour

02

Writing your own block set

03

Leaving Freedom for an extension

04

Schedules in the tab

Bottom line

The original tab lock — LeechBlock if the browser should freeze, Cold Turkey if the machine should.

Key Features

Schedules
Block sets
Free
Extension
You write the list

Tags

BlockingBrowserFree

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Frequently asked questions

What is LeechBlock?

LeechBlock is a Productivity tool developed by James Anderson. The company was founded in 2007 and is headquartered in Open source. The original browser lock: schedules, sets, a block you wrote — Freedom's more extension-native cousin for people who still live in the tab.

Is LeechBlock free?

Yes — LeechBlock is free to use.

Is LeechBlock open source?

No — LeechBlock is proprietary software.

What are the best alternatives to LeechBlock?

Notable Productivity alternatives include Notion AI, Grammarly, Canva AI. Browse all 4 tools in our Productivity category for a full overview.

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Basic Info

Pricing
Free
Rating
4.6 (5,400 reviews) Ratings explained
Platforms
FirefoxChromeEdge
Founded
2007
Headquarters
Open source
Last verified
2026-09-11