Code Sandbox
ColabYard's Code Sandbox lets learners join via QR code with no account, app, or installation, then run code directly in the browser across four languages , Python, SQL, R, and JavaScript, seeing real output for each. Trainers can place a Code Sandbox task inside a lecture or module alongside other task types. The result: write it, run it, learn it, all in the browser.
Learn more about this tool
- Code Sandbox — what it does and how learners join
- Guide: Teaching Maths and Code Without Installing Anything





