Clean up pasted text

Choose only the changes you need. Cleanup normalizes line endings, spaces, invisible characters, quotes, line edges, and punctuation, then removes duplicate lines before joining wrapped lines. Blank-line runs become a single paragraph break when joining. Remove blank lines also removes these paragraph breaks. Duplicate matching is case-sensitive and uses cleaned source lines, keeping the first occurrence. Punctuation cleanup fixes spaces around commas and similar marks, reduces repeated question/exclamation marks, and preserves ellipses, decimals, HTTP(S) URLs, and email addresses.

Space cleanup also converts non-breaking spaces to ordinary spaces. Invisible-character cleanup removes zero-width spaces, soft hyphens, and byte-order marks; it keeps joiners used in languages and emoji. These options may alter intentional formatting, so review the result, especially for code or poetry.

Your original input stays unchanged. Editing input or options clears the previous output. Up to 1,000,000 characters are processed in your browser without uploads or storage.