Ignore Case
"Hello" = "hello"
Trim Whitespace
Remove leading/trailing spaces
Remove Blank Lines
Delete empty lines
Keep Last Duplicate
Default: keeps first
Sort Mode
Original Order
A → Z
Z → A
Shortest First
Longest First
🔀 Randomize
0 unique lines kept
0 duplicates removed
0 total input lines
0% unique
0 lines
0 chars
Drag & drop a .txt file to load instantly
0 lines
0 removed
Process some text to see the diff
Clean Email Lists
Remove duplicate email addresses from mailing lists before sending campaigns. Saves delivery cost and avoids spam complaints.
Deduplicate Code
Remove repeated import statements, CSS rules, or config entries. Sort and clean code files quickly.
Unique Word Lists
Generate vocabulary lists, SEO keyword lists, or product catalogs without repetition. Use the A–Z sort for alphabetical order.
Database Cleanup
Clean exported CSV rows, deduplicate product names, or sanitize data before importing into a database.