Remove Duplicate Lines

Free text deduplicator. Remove duplicate lines with case sensitivity, whitespace trimming, and sort options. See removal stats — 100% client-side. 100% serverless.

🔒 100% Private

⚡ Completely Free

🌐 Runs in Browser

📦 Export Ready

Paste text with duplicate lines.
Configure options — case sensitivity, trim whitespace, sort.
Click Remove to deduplicate.
Copy the result.

A free tool to deduplicate text lines. Paste text with duplicate lines, configure options, and get clean, unique output. Shows removal statistics.

Features

Case-sensitive or insensitive matching
Whitespace trimming
Output sorting
Removal statistics

Privacy

100% client-side.

Frequently Asked Questions

Is my text safe?

Yes. 100% client-side. No data sent.

What options are available?

Case sensitivity toggle, whitespace trimming, and output sorting.

Does it preserve order?

Yes. By default, the first occurrence of each line is kept in original order. Enable Sort to alphabetize.

Can it handle large files?

Yes. Works well with thousands of lines.

Remove Duplicate Lines — Text Deduplicator