Remove Duplicate Lines from Text

Clean up text files and datasets by eliminating repeated rows while preserving initial order or sorting alphabetically.

Key Features

• Case-sensitive or case-insensitive deduplication
• Preserve original line ordering or sort lines alphabetically
• Whitespace stripping and empty line filtering
• Instant client-side processing with zero server uploads

Frequently Asked Questions

Is the Remove Duplicate Lines free to use?

Yes, DODDY's Remove Duplicate Lines is 100% free with no account registration, subscriptions, watermarks, or usage limits.

Can I preserve the original line order while removing duplicates?

Yes! DODDY keeps the first occurrence of each unique line and preserves its exact initial position.

Are my files and data kept private when using Remove Duplicate Lines?

Yes. All computations and file transformations run locally within your web browser. Your confidential data is never transferred to external servers.