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Text Tools
Free online tool
Remove repeated non-empty lines while keeping the first occurrence of each line.
Tool workspace
Enter the text you want to work with, then review and copy the result.
Cleaning lists, exports, copied results and simple text datasets.
Decide whether capitalization and whitespace should make two lines different before cleaning a list.
It is line-based and does not detect semantic duplicates with different wording.
How to use it
Use the controls above, check the result, then copy or download it when available.
The first occurrence is kept and later matching lines are removed.
Use this tool whenever you need: Cleaning lists, exports, copied results and simple text datasets. It offers a fast, client-side workflow without sign-ups, installation or complex software.
Yes. All processing executes locally in your browser using client-side JavaScript. Your inputs, files and calculations remain private and are never uploaded to our servers.
Decide whether capitalization and whitespace should make two lines different before cleaning a list. Important note: It is line-based and does not detect semantic duplicates with different wording.
Related
Keep one copy of each line
Remove repeated non-empty lines while keeping their first occurrence.
Blank lines are ignored. Matching is case-sensitive after surrounding whitespace is trimmed.
The cleaned result updates as you type.
Processing happens in your browser. Nothing is sent to a server.