Browser Tool
Deduplicate lines locally in your browser
Remove duplicate lines while preserving order. Toggle case-sensitive matching, then copy or download the cleaned result. Nothing leaves your browser.
Input
Paste one line per item
Local only
Best for
Email lists, tags, keyword exports, copied SQL rows, and quick text cleanup.
Summary
Output
Unique lines
Preserves order
The first occurrence wins, so the cleaned list stays predictable.
Private by default
Processing happens in the page itself, with no upload step.
How it works
- 1. Paste or type one entry per line.
- 2. Decide whether uppercase and lowercase should count as the same value.
- 3. Generate the cleaned result, then copy or download it.