
LeechBlock
James Anderson
★ #42 in ProductivityThe original browser lock: schedules, sets, a block you wrote — Freedom's more extension-native cousin for people who still live in the tab.
Product preview

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
A free browser lock for an hour
Writing your own block set
Leaving Freedom for an extension
Schedules in the tab
Bottom line
The original tab lock — LeechBlock if the browser should freeze, Cold Turkey if the machine should.
Key Features
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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