BlankScreen
Fullscreen timers, color screens & white noise — no install
About BlankScreen
BlankScreen is a set of free browser tools that run fullscreen with one click: countdown timers (27 presets + alarm, light or dark), a flip clock, solid color screens for chroma key and display testing, white/pink/green/brown noise and rain sounds, retro screensavers, and screen tests like a dead-pixel checker. Everything is generated live in the browser — nothing to install, no account.
Demo
Screenshots
Maker
Listed from Product Hunt. Claude Updates summarizes public launches and links back to the source.
