Does it preserve the original order?

Yes. The first occurrence of each line is kept in its original position.

Is the comparison case-sensitive?

Yes. 'Hello' and 'hello' are considered different lines.

Yes, it works on any line-based text including CSV rows, log entries, and lists.

Text Utilities

Remove duplicate lines from your text, keeping only unique entries.

100% client-side processing

100% client-side — your text never leaves your browser

Input

0 characters|0 words|0 lines

Output

0 characters|0 words|0 lines

Remove duplicate lines from your text, keeping only unique entries.. Runs 100% client-side — no data is sent to any server.

Vercel

Deploy frontend apps with zero config

Netlify

Build and deploy modern web projects

DigitalOcean

Cloud infrastructure for developers

Railway

Deploy apps, databases, and cron jobs instantly

JSON Formatter

Pretty-print and validate JSON data

Diff Checker

Compare two texts and highlight differences

Word Counter

Count words, characters, sentences, paragraphs, and estimate reading time.