Remove Duplicate Lines Online
Remove duplicate lines from text, email lists, URLs, or CSV rows online. Options to ignore case, trim whitespace, and sort alphabetically.
✓ 100% Free
👤 No Login
⚡ In-Memory Speed
🔒 100% In-Browser Privacy
0 lines
0 unique (0 removed)
How to Use Remove Duplicate Lines Online Privately
Using online converters often risks exposing sensitive records and documents to third-party cloud servers. AG World Tools executes all algorithms 100% locally on your device in browser memory with zero network uploads.
1. Paste Your List
Paste your list of emails, keywords, items, or rows.
2. Choose Options
Toggle case-sensitivity, trim whitespace, or alphabetical sorting.
3. View Stats & Copy
See how many duplicates were pruned and copy your clean list.
Frequently Asked Questions
Can I sort lines while removing duplicates?
Yes. You can keep the original order, sort A to Z (ascending), or sort Z to A (descending).
Can I ignore case differences (e.g. Test vs test)?
Yes. Enable the "Ignore Case" checkbox to treat upper and lowercase variations as duplicates.