Free · No sign-up · Runs in browser
Remove Duplicate
Lines
Paste any text and instantly remove duplicate lines. Supports case-insensitive matching, trimming, empty line removal, and sorting. Runs 100% in your browser — nothing leaves your device.
Text Input
Unique Lines
// Your deduplicated text will appear here…
Smart deduplication
Remove exact or case-insensitive duplicates. Choose to keep the first or last occurrence of each line.
Fully private
Your text never leaves the browser. Safe for logs, configs, passwords, or any sensitive data.
Flexible options
Trim whitespace, remove empty lines, sort the result — all configurable before or after conversion.