Remove Duplicate Lines Online
Clean up your text by removing duplicate lines instantly. Perfect for cleaning lists, logs, and data exports.
How It Works
Paste your text with duplicate lines
Choose your options (case sensitivity, trim)
Get clean text with duplicates removed
Features
Frequently Asked Questions
Is this tool really free?
Yes, 100% free with no hidden costs or limits. All processing happens in your browser.
What does case sensitive mean?
When enabled, "Hello" and "hello" are treated as different lines. When disabled, they are considered duplicates.
Does it preserve the original order?
Yes, unless you enable the sort option. The first occurrence of each line is kept in its original position.
Remove Duplicate Lines Online — The Complete Guide
Need to remove duplicate lines online? Our free text deduplicator instantly delete repeated lines from text, clean up lists, and deduplicate data.
Duplicate Line Remover
Our duplicate line remover scans text line by line, removing repeated entries while preserving the first occurrence. Remove duplicates from list data instantly.
Clean Up Text Duplicates
Clean up text duplicates from logs, exports, or merged files. Handles thousands of lines efficiently. Perfect for email lists, URLs, or product SKUs.
Tips for Removing Duplicates
- Use case-insensitive mode for email addresses
- Enable trim whitespace to catch near-duplicates
- All processing happens locally — data stays private
- Copy deduplicated result with one click