An nsjail Docker image for CTF pwnables. Easily create secure, isolated xinetd/inetd-style services.

Run untrusted code in an isolated environment

Boilermake 2025: Keep Typing And Nobody Explodes

Mingdao OnlineJudge, A performant contest management system base on cutting edge stack.

Notes on using kctf/nsjail for more interesting CTF challenges. (incomplete but hopefully helpful)

(Gitlab Mirror) - Safe, fast evaluation of arbitrary Kotlin and Python code using Kotlin and Ktor.

StackSync Assesment ... done using flask, nsjail,sandbox,docker and cloud.

⚠️ OLD EXPERIMENT I used to learn Rust and linux namespaces ⚠️ A port of the excellent process isolation library NsJail to rust with experimental features to decrease the startup latency further

A secure Flask-based API to run untrusted Python scripts inside an isolated sandbox using nsjail.

Simple online judge with additional features. Measure execution time and limit memory inside nsjail-based sandboxes. Divide your content into sets of exercises and show your results with scoreboards.