Remove Duplicate Lines
Remove duplicate lines from text.
Paste text to remove duplicate lines while preserving the original order. Optionally trim each line and ignore case when comparing. The original and final line counts are shown. Everything runs locally in your browser.
- Original lines
- 0
- Final lines
- 0
Your input is processed locally in your browser — nothing is uploaded, stored or logged.
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How it works
- 1 Paste your lines.
- 2 Choose trim and ignore-case options.
- 3 Copy or download the de-duplicated result.
Common use cases
- Clean up a list of emails or URLs.
- Remove repeated log lines.
- De-duplicate keywords.
- Tidy exported data.
Frequently asked questions
Is my text sent to a server?
No. Everything runs locally in your browser — your text is never uploaded, stored or logged.
Is the order preserved?
Yes. The first occurrence of each line is kept in its original position.
Is it really free?
Yes — free, with no signup and no limits.