Free Duplicate Line Remover – Clean Up Lists Online
Remove duplicate lines from any list or text
Features
- Case-sensitive toggle
- Trim whitespace option
- Skip empty lines option
- Shows before/after count
Frequently Asked Questions
No — the first occurrence of each unique line keeps its original position; only later duplicates are removed.
Yes — toggle case-sensitive matching on or off, so "Example.com" and "example.com" can be treated as the same or different entries depending on your needs.
Yes — there's an option to trim leading/trailing whitespace before comparing lines, so accidental spacing differences don't cause near-duplicates to be missed.
Yes — there's an option to remove blank lines along with the duplicate-removal step.
Yes — a before/after count shows exactly how many lines were removed.
How to Use Duplicate Line Remover
Using Duplicate Line Remover is simple and free. No sign-up required.
- Paste your list, one item per line.
- Adjust options if needed.
- Click Remove Duplicates and copy the result.
About Duplicate Line Remover
Duplicate Line Remover cleans up any line-based list — email addresses, usernames, URLs, or general text — by removing repeated entries while keeping the first occurrence of each unique line in its original position. It's a quick fix for a list that's been merged from multiple sources and ended up with repeats, without needing to manually scan for duplicates by eye.
All iLoveToolZone tools work directly in your browser — no software installation or account required.