Null Shell

Null Shell helps you cut back on doomscrolling. Pick a daily limit (for example 20 minutes). A small timer shows how much time you have left while a supported site is open and focused. When the limit is reached the page is covered by a lock screen. You can take one short 5-minute extension per day, and the clock resets at midnight. What you can do: Set one shared daily time limit across all supported sites. Choose which sites the timer and the optional theme apply to. Shrink the timer into a small ring that keeps counting. Pick a visual theme or build your own with custom colors and your own mascot image. Turn on "Block videos" to pause videos and cover them with a big red X. Switch the theme off for a site with one click.