Blocka

by yusuphs@sinapistech.com · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 17 Oct 2026

Free and open-source site blocker for staying focused

Users

0 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#311K

#250K among extensions

Version

1.0.0

updated 23 Jun 2026

Users

monthly, 4 months

Latest, 17 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 4 months

Latest, 17 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Blocka

Blocka is a lightweight, open-source browser extension designed to help you stay focused by blocking distracting websites with as little setup as possible. Block the current site directly from the popup. When you visit a blocked site, Blocka replaces it with a clean blocked screen and a short motivational message. Unblocking is intentionally harder than blocking. Instead of a single click, Blocka requires you to type a confirmation phrase before a site is restored. If you repeatedly block and unblock the same site, the confirmation phrase becomes longer over time, up to a fixed limit. This adds helpful friction without turning the experience into punishment.