Timer & scheduler · Windows · macOS · Linux

Schedule the dark.

PowerDown turns your computer off on a countdown or at an exact date and time. Set it, close the window, and get on with your night — it waits in the tray and shuts down on cue.

Get it on GitHub See all platforms // free & open source

The computer will shut down

tonight · 11:30 PM

00:44:59

Cancel

A look inside

Small window, everything at hand.

One compact window, two ways to schedule, five languages. The window sizes itself to what's on screen — and grows only while the calendar is open.

Countdown timer tab — **Countdown timer** — hours & minutes, or one tap

Scheduler with calendar open — **Scheduler** — a date, a time, 12h or 24h by locale

Language dropdown with flags — **Five languages** — with flags, follows your OS

**Live countdown** — cancel any time before it fires

What's inside

Built to be boring in the best way.

It does one job and does it precisely, on every desktop OS, in your language.

Two modes

Timer or calendar

Count down from now, or pick an exact date and time to power off.

Cross-platform

Win · macOS · Linux

Picks the right native shutdown command for whatever you're running.

Localized

Five languages

English, Ukrainian, Spanish, French, German — with flags, matching your system on first run.

Locale clock

12h or 24h

The scheduled time shows AM/PM or 24-hour, whichever your region uses.

Set & forget

Runs in the tray

Close the window and the shutdown still fires. A live countdown, cancellable any time.

Optional

Launch at startup

Have PowerDown ready the moment you log in — one checkbox.

Get PowerDown

v1.0.0

Download it directly — no store required.

While store listings are pending, install straight from a GitHub Release. Free, open source, one file per platform.

macOS Universal · Apple Silicon & Intel · 168 MB Download .dmg Windows x64 · 75 MB Download .exe Linux x86_64 · AppImage · 102 MB Download .AppImage

Need a different CPU architecture? All builds are listed on the v1.0.0 release page. Builds are unsigned — macOS and Windows will warn about an unidentified developer on first launch.

App stores

macOS App Store Coming soon

Windows Microsoft Store Coming soon

Linux .deb & .rpm Coming soon

Found a bug? Got an idea?

Open an issue on GitHub, or email it straight to the person who built this.

[email protected]