Duplicate Line Remover
Remove repeated lines from lists, URLs, keywords, logs and copied text while keeping the order you need.
Browser-based deduplication. Your text is processed locally. Choose how duplicates should be compared, then copy the cleaned list.
Remove duplicate lines
Paste your list above, then remove duplicates.
Input0 lines
Unique0 lines
Removed0 duplicates
Common uses
- Deduplicate keyword, URL or email lists.
- Clean repeated log lines or exported values.
- Remove duplicate entries before importing a list into another tool.
- Combine copied lists while preserving the original order.
How it works
Each newline-separated entry is compared using your selected rules. By default, the first occurrence is retained and later matches are removed. The original source text is not rewritten just because whitespace or case-insensitive comparison is enabled.
FAQ
Yes. Keep first preserves first-appearance order. Keep last retains the last occurrence of each value; sorting can then be applied if selected.
Yes. Turn on Ignore case.
No. Trimming is used for comparison. The selected source line is kept as written unless sorting changes its position.
No server upload is required. The deduplication runs in your browser.