Pachtop

Pachtop is named after top, the Linux program that has shown people their CPU and memory usage since 1984. The inspiration was Stacer, a good system monitor that I wanted a more modern version of, and an excuse to learn Rust.

It shows aggregate and per-core CPU, memory and swap, network throughput, system information, running processes with side-by-side resource comparison, and disk usage with an analyzer for finding what is actually eating a drive.

The VRRTT stack

Vite, Rust, React, TypeScript, Tauri.

Tauri is the reason this is worth building: it renders through the operating system's own webview rather than shipping a browser, so the binary is small and the memory footprint is a fraction of the equivalent Electron app. On macOS it also feels native, because Safari is closely integrated with the OS. System metrics come from the sysinfo crate, which normalizes CPU, memory, disk, network and process data across all three platforms.

Roughly 215,000 downloads across releases. MIT, and it stays free.