Documentation
Introduction

Introduction

Cup is a lightweight alternative to What's up Docker? (opens in a new tab) written in Rust.

Features ✨

  • 🚀 Extremely fast. Cup takes full advantage of your CPU and is hightly optimized, resulting in lightning fast speed. On my Raspberry Pi 5, it took 3.7 seconds for 58 images!
  • Supports most registries, including Docker Hub, ghcr.io, Quay, lscr.io and even Gitea (or derivatives)
  • Doesn't exhaust any rate limits. This is the original reason I created Cup. It was inspired by What's up docker? (opens in a new tab) which would always use it up.
  • Beautiful CLI and web interface for checking on your containers any time.
  • The binary is tiny! At the time of writing it's just 5.2 MB. No more pulling 100+ MB docker images for a such a simple program.
  • JSON output for both the CLI and web interface so you can connect Cup to integrations. It's easy to parse and makes webhooks and pretty dashboards simple to set up!

Installation