Freedom251 › Distraction Blocking Software
LeechBlock NG
What LeechBlock NG is
LeechBlock NG is a browser extension for limiting access to websites you choose, using schedules, time limits, or both. You can organize sites into as many as 30 block sets and assign different days and times to each. Rules support wildcards and exceptions; its documentation also describes blocking by keyword or referring site. Lockdown can start a block immediately for a duration you set, and you can protect the options page with a password or random access code.
The maker lists Firefox, Chrome, Edge, and Chromium-based browsers including Brave, Opera, and Vivaldi. The Free plan costs nothing and includes the extension and up to 30 block sets; there is no free trial. Settings are kept locally unless you choose sync storage, and are removed when the extension is uninstalled. The maker says it does not collect personal information beyond user-entered settings or collect webpage content for keyword blocking. The extension needs access to tabs, navigation activity, and website data; history permission is optional. LeechBlock is not designed for parental control or blocking offensive content, and the maker warns that a browser may briefly connect to a blocked site.
Who it suits
LeechBlock NG suits people who want scheduled or time-limited blocks for chosen websites in a supported browser. Its multiple block sets and lockdown option can accommodate different rules, while it is not intended for parental control or blocking offensive content.
What it does well
- Create up to 30 sets with distinct schedules.
- Combine scheduled blocks with time limits.
- Use wildcards, exceptions, and lockdown.
- Protect options with a password or random code.
- Settings stay local unless sync storage is chosen.
What to know first
- Available as a browser extension, not a mobile app.
- Not designed for parental control or offensive-content blocking.
- A browser may briefly connect to a blocked site.
Limits
The Free plan costs nothing and allows up to 30 block sets. LeechBlock is not designed for parental control or blocking offensive content; many open tabs can sometimes slow it down.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | Free browser extension · up to 30 block sets | Free |
As proginosko.com lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Visit https://www.proginosko.com/leechblock/.
- Choose a listed supported browser: Firefox, Chrome, Edge, or a Chromium-based browser such as Brave, Opera, or Vivaldi.
- Add the browser extension.
- Configure up to 30 block sets with chosen sites, days, and times.
- Optionally set time limits, lockdown, or a password or random access code for the options page.
Verdict
Pick LeechBlock NG if you want a free browser extension with flexible schedules, time limits, and up to 30 block sets. Look elsewhere for parental controls, offensive-content filtering, or an app for macOS or iOS; the maker points those users to ivBlock, based on LeechBlock.
Questions
How much does LeechBlock NG cost?
The Free plan costs nothing and includes up to 30 block sets. There is no free trial.
Which browsers does it support?
The maker lists Firefox, Chrome, Edge, and Chromium-based browsers including Brave, Opera, and Vivaldi.
Is LeechBlock available for macOS or iOS?
The maker says LeechBlock itself is not available for macOS or iOS and points to ivBlock, which is based on LeechBlock.
What can it block, and how can rules work?
It blocks websites using schedules, time limits, or both. Site rules support wildcards and exceptions; the documentation also describes keyword and referring-site blocking.
What data does LeechBlock collect?
The maker says it does not collect, store, or transmit personal information beyond user-entered settings, or collect or store webpage content accessed for keyword blocking. Settings and data are stored locally unless you choose sync storage, and are removed when the extension is uninstalled.
Is it suitable for parental controls?
No. The maker says it is not designed for parental control or blocking offensive content.
Facts from LeechBlock NG's own pages
- Access controls
- Users can protect the options page with a password or random access code. · proginosko.com, 8 Oct 2026
- Blocking schedules
- Users can block sites during scheduled time periods, after a time limit, or using both conditions together. · proginosko.com, 8 Oct 2026
- Block sets
- Users can configure up to 30 sets of sites with different times and days for each set. · proginosko.com, 8 Oct 2026
- Connection caveat
- The maker warns that a browser may briefly connect to a blocked site, which could allow the site to log the user's IP address. · proginosko.com, 8 Oct 2026
- Data storage
- The maker says user settings and data are stored locally unless the user chooses sync storage, and are removed when the extension is uninstalled. · proginosko.com, 8 Oct 2026
- Intended use limit
- The maker says LeechBlock is not designed for parental control or blocking offensive content. · proginosko.com, 8 Oct 2026
- Lockdown
- The lockdown feature can block sites immediately for a specified duration. · proginosko.com, 8 Oct 2026
- Matching rules
- Site lists support wildcards and exceptions, and the documentation also describes blocking by keyword or referring site. · proginosko.com, 8 Oct 2026
- Performance note
- The maker says many open browser tabs can sometimes slow LeechBlock and suggests reducing open tabs or enabling processing of active tabs only. · proginosko.com, 8 Oct 2026
- Permissions
- The extension requires access to browser tabs, navigation activity, and data on all websites; browsing history permission is optional and requested only if the user enables adding blocked pages to history. · proginosko.com, 8 Oct 2026
- Platform limits
- The FAQ says LeechBlock itself is not available for macOS or iOS and points users to ivBlock, which is based on LeechBlock. · proginosko.com, 8 Oct 2026
- Privacy
- The maker states that LeechBlock does not collect, store, or transmit personal information beyond user-entered settings, and does not collect or store webpage content it may access for keyword blocking. · proginosko.com, 8 Oct 2026
- Purpose
- LeechBlock NG is a browser extension for blocking time-wasting websites according to user-specified sites and schedules. · proginosko.com, 8 Oct 2026
- Support
- The maker directs users to its documentation, examples, FAQ, GitHub Q&A discussions, GitHub issue trackers, and developer email for support. · proginosko.com, 8 Oct 2026
- Supported browsers
- The maker lists Firefox, Chrome, Edge, and other Chromium-based browsers such as Brave, Opera, and Vivaldi. · proginosko.com, 8 Oct 2026
Where LeechBlock NG stands on Freedom251
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