Download upcheckr

One self-contained native binary — no Java, no database to install. Pick your platform, run it, open the wall at :8080.

Homebrew · macOS & Linux
brew install laurentiud/tap/upcheckr

Installs the native binary and keeps it current with brew upgrade. Or grab a binary directly below.

macOS · Apple Silicon

Native arm64 binary.

Download

Linux · x86-64

Static native binary.

Download

Linux · arm64

Static native binary.

Download

Windows · x64

Native .exe (unsigned — click through SmartScreen once).

Download

Any OS · JVM jar

Cross-platform; needs Java 21. Good for Intel Macs.

Download .jar

Run it

# macOS / Linux
chmod +x upcheckr-macos-arm64
UPCHECKR_ADMIN_PASSWORD=secret ./upcheckr-macos-arm64

# Windows (PowerShell)
$env:UPCHECKR_ADMIN_PASSWORD="secret"; .\upcheckr-windows-x64.exe

# JVM (any OS)
UPCHECKR_ADMIN_PASSWORD=secret java -jar upcheckr.jar

Then open http://localhost:8080. Data persists at ~/.upcheckr/upcheckr.db (override with UPCHECKR_DB). Each binary ships with a matching .sha256 for verification.