NothingHere

Brianna Lin and soLee built NothingHere because they've been there—someone walks up behind you and your screen is... not exactly work-appropriate. Maybe it's a YouTube rabbit hole. Maybe it's online shopping at 2pm on a Tuesday. The frantic ⌘H, ⌘M, scramble-to-click-something dance never works fast enough. So they built the panic button they always wanted.

One key press does three things simultaneously: hides every window on your screen in milliseconds, mutes all system audio instantly, and launches a cover file or app—a spreadsheet, Slack, Xcode, anything that screams "I'm legitimately working." It's free, open source, weighs only 5.8 MB, and works on macOS 15.0+. Version 1.1 added Guard Mode, which lives in your menu bar and watches for any key press when armed—toggle it on and you're protected the moment you need it. Version 1.2 went further with App Whitelist, so your Spotify or Terminal can stay visible while everything else disappears.

The use case is obvious: open offices, remote work, anywhere someone might peer over your shoulder at the wrong moment. It's the tool you hope you never need but will be incredibly grateful exists when you do. macOS 15.0+ required.