Website Blocker Engine
Flexible domain-level blocking for Windows and Android. Use Whitelist Mode (only approved origins load) or Blacklist Mode (only blocked domains are restricted) during active focus sessions.
Whitelist Mode — Allow-Only
Add exact domain origins (e.g. `docs.python.org`, `github.com`, `leetcode.com`). All unapproved web requests trigger an instant focus notification screen. Perfect for exam prep and deep work sprints.
Blacklist Mode — Block-Only
Alternatively, specify only the domains to block (e.g. reddit.com, instagram.com, twitter.com) and leave the rest of the web open for free browsing. Ideal for professional research and flexible work styles.
Embedded Whiiteroom Browser
Whiiteroom includes a native integrated browser that enforces both whitelist and blacklist rules directly at the engine level, bypassing vulnerable extension workarounds. Both modes share the same browser.