Slate Focus

A reading ruler and focus mode for any web page.

Click the toolbar icon — or set your own keyboard shortcut — and everything on the page dims except a soft band that follows your mouse, so your eyes stay locked on what you're reading instead of drifting across a wall of text.

Get Slate Focus — Chrome Web Store

Toggling Focus Mode is always free. Premium unlocks full customization for £5, one-time — no subscription.

What Premium unlocks

Spotlight height and dim strength
Overlay color
Font size and paragraph width
Edge softness — hard-edged or soft-faded band

Built for privacy from the ground up: no account, no sign-in, no tracking, no analytics. Your settings never leave your device, and Slate Focus only ever touches the tab you're actively using.