Remove Duplicate Lines
Remove duplicate lines from any text while preserving order. Useful for lists, logs, and data cleanup.
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Removing repeated lines
Lines are compared after trimming their outer whitespace. The first occurrence is retained with its original spacing and order.
Output behavior and limits
Comparison is case-sensitive: Apple and apple are distinct. Repeated blank lines also collapse; this is not a CSV-aware row deduplicator.
For a copied checklist, paste one item per line. Review similar names with different capitalization before treating the result as a unique contact or product list.
Before replacing your original
- Processing runs locally in this browser; keep a copy of the source input.
Processing details
Runs in your browser. File handling policy
Implementation and guidance reviewed .
Related tools
Continue with another step in your workflow.