PseudoRun

PseudoRun is an online tool aimed at students (and anybody learning algorithms) who want to treat pseudocode like real code. It offers live execution and instant output, syntax highlighting and error detection for IGCSE‑style pseudocode, built‑in examples/templates, and a clean, beginner‑friendly interface — all without requiring any downloads or setup.

It’s especially useful for practicing pseudocode assignments, debugging logic, visualizing how loops and variables evolve during execution, prototyping algorithms before translating them into languages like Python or Java, or simply exploring algorithmic thinking.

You can check it out here: pseudorun.tech