Does dedupe preserve the original order?

Yes. Deduplication keeps the first occurrence of each line and only removes later duplicates, so the order stays intact.

Is sorting case-sensitive?

Yes. Uppercase letters sort before lowercase (by Unicode code point). Pinyin ordering for Chinese is not guaranteed — use a dedicated tool if you need precise Chinese collation.

No. All processing happens locally in your browser; the text is never sent to a server.

Line Tools Util123 · Sort / dedupe / clean up

Text Line Tools

Tidy up messy multi-line text: sort, dedupe, remove empty lines, trim spaces. One click, clean result.

Original text (one item per line)

Operations

Dedupe (keep first) Remove empty lines Trim spaces

Result

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Click “Tidy” and the result appears here, ready to copy.

FAQ

Does dedupe preserve the original order?: Yes. Deduplication keeps the first occurrence of each line and only removes later duplicates, so the order stays intact.
Is sorting case-sensitive?: Yes. Uppercase letters sort before lowercase (by Unicode code point). Pinyin ordering for Chinese is not guaranteed — use a dedicated tool if you need precise Chinese collation.
Is my text uploaded?: No. All processing happens locally in your browser; the text is never sent to a server.