Remove Duplicate Lines
Deduplicate any list: emails, IDs, links or words. The first occurrence stays in place and the order of your list is preserved.
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Updated as you type · 1 duplicate line(s) removed
How to use
- Paste your list
One item per line.
- Tune the options
Trim whitespace, ignore case, drop empty lines.
- Copy the clean list
The removed-line count is shown.
Supported formats
- Input: Text lines
- Output: Text lines
Limits & notes
- Lines are compared exactly (or case-insensitively with the option on).
- Order of first appearances is preserved.