Text

Remove Duplicate Lines

Keep only unique lines of text

Runs locally in your browser

Input

Output

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How it works

Removes duplicate lines from text while keeping the first occurrence of each unique line—perfect for cleaning exported logs, email lists, and tag collections.

Who it's for: Data analysts, marketers deduplicating lead lists, and developers cleaning CSV-like paste data

Strips exact duplicate lines based on full-line string match.

Preserves original order of first appearances.

Leaves unique lines unchanged in content.

How to use

Paste your multi-line text into the Input field.
Review the Result panel—the duplicate lines are removed automatically.
Confirm the count shrank as expected for your source data.
Click Copy to save the deduplicated list.

Good to know

Comparison is case-sensitive—"Apple" and "apple" are treated as different lines.
Trim whitespace first if duplicates differ only by trailing spaces.
Near-duplicates with typos are not fuzzy-matched—those need manual review.