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CommentClean

Remove Comments From Code Online

Paste code, detect the language, and remove comments in your browser. Your code stays local and is never uploaded. 21,327,969 comments removed by users. Supports JavaScript, Python, C++, HTML, CSS, PHP, Java, Lua, and more.

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Your code stays local. Your connection can be private too.

CommentClean removes comments in your browser without uploading pasted code. For public Wi-Fi, remote work, or everyday browsing privacy, IceVPN can add an encrypted network layer to the rest of your workflow.

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Keep comments useful, not noisy

What comments do

Comments are notes inside source code that are ignored by the compiler or interpreter. They can explain intent, constraints, or tradeoffs when the code alone is not enough.

Most languages use line comments for short notes and block comments for larger spans.

Why comment clutter hurts

Too many comments slow down scanning. Redundant notes, outdated explanations, and commented-out code make it harder to see what still matters.

The bigger the codebase, the more expensive stale comments become.

What good comments look like

Useful comments explain why something exists, what constraint it respects, or which edge case it protects.

Weak comments restate obvious code or drift out of sync with the implementation.

How CommentClean helps

CommentClean strips comment noise so you can inspect logic, refactor, or share a cleaner snippet quickly.

If a comment is still valuable, you can always add it back with better wording and fresher context.

Redundant comment
// increment counter by 1
counter++;
Useful intent
// Prevent duplicate API calls while typing
const debouncedSearch = debounce(sendQuery, 300);
Misleading comment
// Parse XML response
const data = JSON.parse(response);

Check your clean-code instincts

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What is clean code?

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Why is clean code important?

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What are useless comments?

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How do useless comments affect code quality?

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What is a benefit of removing useless comments?