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Dev tools · March 16, 2026

Lockin - Productivity Chrome Extension

maintain focus via tab locks, tab limits, and site bans

Lockin - Productivity Chrome Extension launched on March 16, 2026.

What it does

What it is - A unique extension which controls browser state to maintain user focus via tab locking, tab limiting, and site banning. 1. Lock a tab in a window, Prevents you from changing tabs in a window. Useful if you need to provide undivided attention to something. 2. Limit total tab count, maybe if you get distracted easily by opening too many tabs and are a bad multitasker. 3. Restrict ability to visit certain sites, Automatically closes tabs that visit restricted URL's.

Does a similar job

all alternatives →
  • Stay Focused Chrome Extension2020 · chromewebstore.google.com · ▲72

    Block distracting websites to help you focus on you work.

  • Enhance2025 · nonchalantowo.github.io · ▲108

    Turn your new tab into a daily boost of calm + productivity.

  • Tab Protector2022 · tabmanage.com · ▲73

    Chrome extension to prevent accidental tab closure & cluster

  • Focused2018 · chromewebstore.google.com · ▲64

    The new browser tab page that helps you stay focused

  • Focus ModeMay 2026 · chromewebstore.google.com · ▲11

    Hide tabs, the address bar, and bookmarks for total focus

  • OneTabFocusJun 2026 · onetabfocus.com · ▲6

    Lock your tabs. Keep your work.

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