Remove Duplicate Lines
Browser-based
Paste a list of lines and remove duplicates instantly. Options include keeping the first or last occurrence, sorting alphabetically, and removing empty lines.
Processed 100% in your browser — your file never leaves this device.
- Free forever
- No signup
- Works offline
- Ad-free
About Remove Duplicate Lines
Clean up lists, CSV exports and pasted data by removing repeated lines. Choose to keep the first or last occurrence of each entry, sort the result alphabetically, and drop empty lines. The tool works instantly in your browser, so even large lists are handled locally without uploading anything.
How to use
- 1
Paste your text or list into the input box.
- 2
Choose your deduplication options.
- 3
Click "Remove Duplicates".
- 4
Copy or download the result.