Sort Lines
Sort complete text lines by Unicode code-point order.
Open toolRemove Duplicate Lines
Remove repeated lines while retaining first occurrence order. Up to 100,000 characters.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Remove duplicates.
Your result
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Result will appear here
How Remove Duplicate Lines works
Remove repeated lines while retaining first occurrence order.
Up to 100,000 characters. Normalizes line endings to LF; compares whole lines and preserves first spelling. Blank lines count as lines.
How to use Remove Duplicate Lines
Follow the labelled inputs.
Enter source lines
Replace the example with source lines. The field labels specify the expected format and units.
Input and settings
Tool result
Run, review and save
Select Remove duplicates. Review the displayed text, then copy it or download the result text.
Review the details
Examples and uses for Remove Duplicate Lines
Check the supplied example
The starting example produces alpha; beta. Remove repeated lines while retaining first occurrence order.
Use your own inputs
Read the labels for source lines and comparison. Up to 100,000 characters.
Record a reviewed result
Copy the displayed text into your notes. Keep the formula and assumptions with it if someone else needs to reproduce the calculation.
How to read the result
Read the units and assumptions with the output.
Remove repeated lines while retaining first occurrence order.
Up to 100,000 characters. Normalizes line endings to LF; compares whole lines and preserves first spelling. Blank lines count as lines.
Supported input and limits
Check the stated scope before you run it.
Up to 100,000 characters. Normalizes line endings to LF; compares whole lines and preserves first spelling. Blank lines count as lines.
The input stays in this browser. Copy result and Download save the same displayed text.
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Open toolRemove Duplicate Lines: common questions
Answers about using Remove Duplicate Lines and understanding its results.
What inputs and assumptions apply?
Up to 100,000 characters. Normalizes line endings to LF; compares whole lines and preserves first spelling. Blank lines count as lines.
How can I save the result?
Copy result copies the displayed text. Download saves the same text as a TXT file. Processing runs in this browser without an account.
Remove duplicates with your input
Check the displayed text, then copy or download it.