Remove Duplicates

Remove duplicate lines from text instantly. Free, private, no limits.

100% Private No Limits Real-time
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How It Works

1

Paste Your Text

Paste or type the text containing duplicate lines into the editor.

2

Configure Options

Choose your preferences: case sensitivity, which occurrence to keep, sorting, and more.

3

Get Results

See your deduplicated text instantly. Copy or download the result.

Key Features

100% Private

All processing happens in your browser. Your text never leaves your device.

Smart Sorting

Sort results alphabetically, by length, frequency, or keep original order.

Advanced Options

Case-sensitive matching, trim whitespace, handle empty lines, and more.

Detailed Statistics

See how many duplicates were removed, size reduction, and top duplicates.

Frequently Asked Questions

Is my text data safe?
Yes, absolutely. All text processing happens entirely in your browser. Your text is never uploaded to any server. We don't store, track, or access your data in any way.
What's the difference between case-sensitive and case-insensitive?
In case-sensitive mode, 'Hello' and 'hello' are treated as different lines. In case-insensitive mode, they are considered duplicates and one will be removed.
How does natural sorting work?
Natural sorting handles numbers correctly. For example, 'item2' comes before 'item10', unlike alphabetical sorting where 'item10' would come first.
Is there a file size limit?
There's no hard limit. The tool processes text locally in your browser, so it's only limited by your device's memory. Very large files may slow down processing.

Who Uses This Tool?

Data Analysts

Clean up datasets by removing duplicate entries before analysis.

Email Marketers

Remove duplicate email addresses from mailing lists.

Developers

Clean up log files, remove duplicate imports, or dedupe configuration lines.

Content Managers

Clean up lists of keywords, tags, or URLs for SEO and content management.

About Remove Duplicates

Our Remove Duplicates tool is designed to help you quickly clean up text by removing duplicate lines. Whether you're cleaning data, organizing lists, or preparing content, this tool makes it easy.

Smart Detection

The tool uses efficient algorithms to detect duplicates, with options for case-insensitive matching, whitespace handling, and more.

Privacy First

All processing happens locally in your browser. Your text never leaves your device, ensuring complete privacy.

Fast & Efficient

Optimized for speed, the tool can handle large texts with thousands of lines in real-time.