CS50 Sandbox

temporary programming environments for students and teachers

with support for these environments

  • Bash, using bash
  • C, using clang or gcc
  • C++, using clang++ or g++
  • Erlang, using erl
  • Flask, using flask
  • Go, using go
  • Haskell, using ghc or ghci
  • HTML, using http-server
  • Java, using javac and java
  • Lua, using lua or luac
  • Node.js, using node
  • OCaml, using ocaml
  • Octave, using octave, largely compatible with Matlab
  • PHP, using php
  • Prolog, using prolog
  • Python, using python
  • R, using R
  • Ruby, using ruby
  • SQLite, using sqlite3

Environments are based on cs50/sandbox, which is based on Ubuntu 18.04. Email sysadmins@cs50.harvard.edu to request others.

Empty file(s) to create and open in tabs, one per line. You can also create (empty or non-empty) files later via terminal window, text editor, or upload.
To distinguish it among recent sandboxes.
For example, apt install -y figlet. Can also be a multi-line Bash script.
For example, python, to replace shell with interpreter. Default is bash.
Create or configure or preview URL
Link to this URL to create this sandbox when clicked, without creating your own first.