CTFd, the open source Capture The Flag platform: a challenge board, live scoreboard, teams and a full admin panel for running security competitions and training events.
This product is available in the build below. Open it for the operating system, cloud and version detail, or read its deployment guide.
| Product | Cloud | Operating system | Version | |
|---|---|---|---|---|
| CTFd on Ubuntu 24.04 LTS | Azure | Ubuntu 24.04 | Standard | View · Guide |
CTFd is a popular open source Capture The Flag competition platform used to run security training events, workshops and jeopardy style competitions. It provides a challenge board, a live scoreboard, individual or team play, solve tracking, hints and a complete administration panel for authoring challenges, flags and pages, so you can run an event instead of building a platform.
This image runs CTFd on a complete application, database and cache stack, assembled and ready rather than left for you to wire together. It suits security teams, educators and event organisers who want a self hosted CTF platform running in their own cloud account.
The cloudimg image runs CTFd on a hardened stack served by gunicorn behind a reverse proxy, with the database password, cache, application secret key and administrator password generated uniquely for your instance on first boot and stored in a root only file, so nothing ships with a known password. The first run setup is completed automatically and a demo challenge is seeded, so the board is a real event rather than an open setup wizard the first visitor could hijack. The deployment guide covers authoring challenges, running an event, pointing your domain and enabling HTTPS. 24/7 support is included.