Best picks by scenario
Best customizable browser blocker
LeechBlock NG is strongest for rules, time windows, and delay tactics.
Best mainstream blocker
BlockSite is a familiar browser and mobile blocker with focus mode.
Best advanced filter-list option
uBlock Origin is powerful for users who know how to manage filter lists.
Compare tools
| Tool | Best for | Platforms | Privacy | Key difference |
|---|---|---|---|---|
| Fortify | Users who want lessons, check-ins, and a structured program rather than only blocking. | iOS, Android, web | Medium | Best for users who want structured lessons and recovery education. |
| BlockerX | Users who want mobile blocking, keyword blocking, and lightweight accountability features. | iOS, Android, Chrome extension | Medium to high | Best as a lower-friction mobile blocker comparison. |
| Remojo | Users who want blocking, exercises, and recovery content in one product. | iOS, Android, browser and desktop support depends on current plan | Medium to high | Best for users who want blocking and recovery prompts in one mobile-first product. |
| Bark | Parents who want online safety alerts, web filtering, screen-time rules, and family device oversight. | iOS, Android, Chrome, and web dashboard support vary by device type and current product terms. | High | Best for parents who want child safety alerts plus filtering and screen-time rules. |
| Accountable2You | Adults, couples, families, churches, and groups who want activity monitoring and accountability reports across devices. | Windows, macOS, Linux, Android, iOS, and Chromebook support should be verified against current device requirements. | High | Best for report-based accountability across individuals, families, churches, and groups. |
| Freedom | Users who want scheduled website and app blocking for focus, relapse prevention, or general digital boundaries. | macOS, Windows, iOS, Android, ChromeOS, and browser extensions depending on current product support. | Medium | Best for scheduled blocks and general digital boundaries. |
| BlockSite | Users who want a familiar mobile and browser blocker for sites, keywords, apps, and focus sessions. | iOS, Android, Chrome, Firefox, Edge, and desktop browser extension support depending on current product terms. | Medium | Best as a familiar mobile and browser blocker for sites, keywords, and focus sessions. |
| LeechBlock NG | Users who want a highly customizable free browser-level blocker with time rules and delay tactics. | Firefox, Chrome, Edge, and other supported browser-extension environments depending on current listings. | Low to medium | Best for advanced free browser-level rules and time windows. |
| StayFocusd | Users who want to limit time spent on specific websites from a browser. | Chrome and Chromium-based browser environments depending on current extension support. | Low to medium | Best for limiting time on known sites in Chrome. |
| WasteNoTime | Safari users who want blacklist rules and time limits inside the browser. | Safari and Apple ecosystem support depending on current App Store listing. | Low to medium | Best for Safari users who want browser-level blacklists and time limits. |
| Fight the New Drug | Users who want education about pornography's effects, conversation resources, and support-oriented content. | Web resources, articles, videos, and educational programs. | Low | Best for education, context, and support resources alongside technical tools. |
| uBlock Origin | Advanced users who want custom filter lists and browser-level blocking controls. | Firefox, Chromium-based browsers, and other supported browser environments depending on current extension policies. | Low to medium | Best for advanced users who can manage custom filter lists and browser-level rules. |
| Plucky | Advanced users who want stricter automated filtering and delayed-change controls. | Desktop and browser workflows depending on current product support. | Medium to high | Best for technical users who want stricter automated filtering and delayed configuration changes. |
Tool profiles
Fortify
Best for users who want structured lessons and recovery education.
Best fit: Users who want lessons, check-ins, and a structured program rather than only blocking.
Platforms: iOS, Android, web
BlockerX
Best as a lower-friction mobile blocker comparison.
Best fit: Users who want mobile blocking, keyword blocking, and lightweight accountability features.
Platforms: iOS, Android, Chrome extension
Remojo
Best for users who want blocking and recovery prompts in one mobile-first product.
Best fit: Users who want blocking, exercises, and recovery content in one product.
Platforms: iOS, Android, browser and desktop support depends on current plan
Bark
Best for parents who want child safety alerts plus filtering and screen-time rules.
Best fit: Parents who want online safety alerts, web filtering, screen-time rules, and family device oversight.
Platforms: iOS, Android, Chrome, and web dashboard support vary by device type and current product terms.
Accountable2You
Best for report-based accountability across individuals, families, churches, and groups.
Best fit: Adults, couples, families, churches, and groups who want activity monitoring and accountability reports across devices.
Platforms: Windows, macOS, Linux, Android, iOS, and Chromebook support should be verified against current device requirements.
Freedom
Best for scheduled blocks and general digital boundaries.
Best fit: Users who want scheduled website and app blocking for focus, relapse prevention, or general digital boundaries.
Platforms: macOS, Windows, iOS, Android, ChromeOS, and browser extensions depending on current product support.
BlockSite
Best as a familiar mobile and browser blocker for sites, keywords, and focus sessions.
Best fit: Users who want a familiar mobile and browser blocker for sites, keywords, apps, and focus sessions.
Platforms: iOS, Android, Chrome, Firefox, Edge, and desktop browser extension support depending on current product terms.
LeechBlock NG
Best for advanced free browser-level rules and time windows.
Best fit: Users who want a highly customizable free browser-level blocker with time rules and delay tactics.
Platforms: Firefox, Chrome, Edge, and other supported browser-extension environments depending on current listings.
StayFocusd
Best for limiting time on known sites in Chrome.
Best fit: Users who want to limit time spent on specific websites from a browser.
Platforms: Chrome and Chromium-based browser environments depending on current extension support.
WasteNoTime
Best for Safari users who want browser-level blacklists and time limits.
Best fit: Safari users who want blacklist rules and time limits inside the browser.
Platforms: Safari and Apple ecosystem support depending on current App Store listing.
Fight the New Drug
Best for education, context, and support resources alongside technical tools.
Best fit: Users who want education about pornography's effects, conversation resources, and support-oriented content.
Platforms: Web resources, articles, videos, and educational programs.
uBlock Origin
Best for advanced users who can manage custom filter lists and browser-level rules.
Best fit: Advanced users who want custom filter lists and browser-level blocking controls.
Platforms: Firefox, Chromium-based browsers, and other supported browser environments depending on current extension policies.
Plucky
Best for technical users who want stricter automated filtering and delayed configuration changes.
Best fit: Advanced users who want stricter automated filtering and delayed-change controls.
Platforms: Desktop and browser workflows depending on current product support.
Selection checklist
- Install protection in every browser used.
- Check private browsing and alternate profiles.
- Review extension permissions.
- Use DNS or system blockers if browser switching is easy.
Related guides
Country notes
FAQ
Are browser tools enough?
They can be enough for controlled browser use, but they do not protect every app, device, or network path.
Which browser blocker should advanced users compare?
LeechBlock NG, uBlock Origin, and Plucky are the strongest advanced options.
Which browser blocker is easiest to start with?
BlockSite and StayFocusd are easier starting points for simple site and time limits.
Important note
This page is informational and does not provide medical advice. Product features, pricing, app permissions, and platform support can change. Verify current details before buying.