Not another site blocker

Lock your browser.
Free your mind.

TabTether doesn't block websites. It blocks the behavior of opening new tabs. One active tab. One timer. No override. The focus tool you can't cheat.

github.com/my-project
New Tab
reddit.com
twitter.com
47:23
Focus session active. 1 tab permitted.
The Problem

Your distractions aren't on a blacklist

You open Stack Overflow "for one answer." Three tabs later you're reading about Rust's borrow checker. Every existing tool blocks specific URLs. None of them stop you from tab-hopping between "productive" sites until your actual work is forgotten.

✗ Every other tool

  • • Blocks specific websites you manually add
  • • Can't stop "productive" distractions (Docs, GitHub, MDN)
  • • Easily bypassed by disabling the extension
  • • Requires you to predict your distractions in advance

✓ TabTether

  • • Locks your browser to the current tab. Period.
  • • Whitelist 2-3 domains per session for real workflows
  • • Bypass requires deliberate friction (not a toggle)
  • • You don't need to know what will distract you
How It Works

Three steps to actual focus

No configuration marathons. No maintaining blocklists. Just tell TabTether what you're working on, and it handles the rest.

🎯

Set your session

Pick your timer (25 min to 4 hours), optionally whitelist 1-3 domains you need for this task. Click start.

🛡

Tabs are locked

New tabs are blocked. Navigation outside your whitelist is blocked. The browser serves one purpose: your current work.

📊

See your patterns

Session analytics show focus streaks, blocked distraction attempts, and your most productive time windows.

The browser extension for people who don't trust themselves

Built by a developer who opened 47 tabs "researching" a bug fix. TabTether is the constraint your executive function forgot to install.