What is kodio?

A pattern-based code analysis engine. No AI, no backend. It reads the structure of your code — loops, recursion, branching, async patterns — and surfaces what matters.

Three modes

Explain it — plain language with context. Good for learning, reviewing, or explaining code to someone else.

Just the facts — stripped-down, technical. For when you already know the theory and just need the signal.

Trace it — walks through the code line by line, describing what each statement does in execution order. Most useful for reading unfamiliar code.

Line highlighting

Hover any insight and the relevant lines in your code highlight. The analysis maps directly to your source.

Keyboard shortcut

Ctrl + Enter to analyse without lifting your hands.

Supported languages

JavaScript, TypeScript, Python, Java, C/C++, Go, Rust, Ruby, PHP, HTML, CSS.