Add a Comment to Your Code
Generate a clear, useful comment for any code snippet in seconds. Free, no signup required.
Rewritten
// Debounce onChange by 300ms so rapid keystrokes don't fire a request per character
const debounced = useMemo(() => debounce(onChange, 300), [onChange]);
Free plan includes 2 rewrites a day. Go unlimited for $8/mo →
About this tool
Good comments explain the intent behind code, not just what each line literally does. This tool reads a snippet and adds a single concise comment that captures why the code exists and what it accomplishes, the kind of note a reviewer actually finds useful. It deliberately avoids the noise of line-by-line narration that clutters a file without adding understanding. Paste a function or block you're about to commit and get back the same code with one comment worth keeping — a fast way to document work you understand now but future-you (or a teammate) won't.
Frequently asked questions
Does it comment every single line?
No — it adds one focused comment explaining intent, rather than restating each line, which is what makes comments useful instead of noisy.
What languages does it work with?
Any common language. It infers the comment syntax (//, #, /* */, etc.) from the snippet you paste in.
Will it change my code?
No — it returns your code unchanged with a comment added. It won't refactor or rewrite the logic.