What does this tool do?

It scans your text and removes any lines that appear more than once, keeping only the first occurrence by default.

Does it support case-insensitive deduplication?

Yes. You can choose to treat lines as case-insensitive so 'Apple' and 'apple' are considered duplicates.

Yes. The tool includes an option to sort the resulting unique lines alphabetically.

No. All processing is done in your browser. Your text stays private.

No hard limit. The tool handles large text files efficiently.

Remove duplicate lines from text with advanced options

Use this free utility for the quick task, then continue in Writing Workspace for the main writing workflow.

Input

Paste your text with duplicate lines here...

Output

Text without duplicates will appear here...

Deduplicate lines with case-sensitive matching, whitespace trimming, and keep-first or keep-last options. Free and private.

Smart duplicate detection

Case-sensitive or insensitive matching with optional whitespace trimming before comparison.

Flexible keep rules

Keep the first or last occurrence of each duplicate line depending on your data needs.

Removal statistics

See total lines, unique lines, and how many duplicates were removed at a glance.

Everything you need to know about remove duplicate lines.

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