Work · alternatives · 2026

24 alternatives to LockIn

The Most UNBLOCKABLE Desktop Site Blocker

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   LockIn MCP▲116

   I was tired of how bad distraction blockers are so I built my own. LockIn lets AI assistants (Claude, ChatGPT, Cursor, etc.) block websites by editing the system hosts file directly via MCP tools (via a secure cloudflare bridge). Why? Because chrome extensions don't work. Blocking it natively makes it unbypassable, and having your agent gatekeep your focus is the ultimate cheat code. Since everyone is using AI agents nowadays, but most people start scrolling or Reddit while waiting for Claude Code to finish, giving them control over your focus solves that. The MCP server exposes four tools:…

   Jun 2026 · lockinmcp.com · its alternatives →

2. 2
   FocusMe▲63

   Most powerful app and website blocker

   2018 · focusme.com · its alternatives →

3. 3
   1Blocker for Mac▲162

   The best Safari content blocker for Mac

   2016 · 1blocker.com · its alternatives →

4. 4
   1Blocker for Mac 3.0▲123

   Block unwanted content in Safari

   2019 · 1blocker.com · its alternatives →

5. 5
   1Blocker X▲113

   A fast and secure content blocker for iOS

   2018 · apps.apple.com · its alternatives →

6. 6
   HNBlocker – Chrome extension that lets you block other HN users▲38

   2013 · chrome.google.com · its alternatives →

7. 7
   Nomoresurf▲87

   Block distracting websites & make it harder to unblock them

   2022 · nomoresurf.com · its alternatives →

8. 8
   UBlock▲129

   Fastest Ads Blocker

   2015 · chromewebstore.google.com · its alternatives →

9. 9
   Lockdown Apps▲80

   Free and open source firewall for iPhone

   2019 · lockdownprivacy.com · its alternatives →

10. 10
    1Block▲64

    Highly customizable app blocking and app timer for Android

    2019 · play.google.com · its alternatives →

11. 11BY
    Block yourself from the Internet until you write or code each day▲118

    2012 · blockr.me · its alternatives →

12. 12
    BlockBlock▲84

    Block persistently installed apps and services.

    2016 · objective-see.org · its alternatives →

13. 13
    Super Duper VPN for Android▲75

    Unblock any website or app

    2017 · play.google.com · its alternatives →

14. 14
    SiteBlocker▲112

    Block distractions & stay focused | Chrome/Firefox extension

    2025 · blockodile.app · its alternatives →

15. 15
    Focus Dude▲88

    Block any websites so you can focus on the web

    2021 · asyrafff.com · its alternatives →

16. 16
    SiteBlocker V4▲3

    Block distracting sites with a focus mode you can't quit

    Jun 2026 · siteblocker.app · its alternatives →

17. 17
    Block Site▲6

    Take Control of Your Time

    2020 · blocksite.co · its alternatives →

18. 18
    Easy Blocker▲5

    Block websites for all browsers

    2019 · site-blocker.info · its alternatives →

19. 19
    Writeaholic▲75

    Stay focused & write daily. A different kind of site blocker

    2021 · chromewebstore.google.com · its alternatives →

20. 20
    Chronos▲66

    Tab manager + website blocker for Firefox

    2018 · addons.mozilla.org · its alternatives →

21. 21
    Site Blocker▲6

    Simple way to block any distracting and harmful websites

    2020 · chromewebstore.google.com · its alternatives →

22. 22
    Easy Blocker▲11

    Simple website blocker for chrome

    2021 · chromewebstore.google.com · its alternatives →

23. 23
    Punish Website ad blocker▲4

    Your own personnal blacklist

    2018 · apps.apple.com · its alternatives →

24. 24
    1Blocker for Mac▲11

    Block ads, tracking scripts, anything. Now for Mac.

    2016 · apps.apple.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →