Remove Duplicate Lines
Delete duplicate lines from any list with options to trim, ignore case, keep the first or last occurrence, and drop empty lines.
Processed locally in your browser — nothing is uploaded.
0 characters
Deduplicated lines
Output appears here…About Remove Duplicate Lines
Paste a list — emails, URLs, log lines, anything with one entry per line — and get it back with duplicates removed and a count of what was dropped. Trimming and case-insensitive comparison catch near-duplicates like “Apple” and “ apple ”, and you can keep the first or the last occurrence of each entry.
Common uses
- Clean a mailing list of repeated addresses
- Deduplicate URLs collected from several sources
- Reduce noisy log output to its distinct lines