Text Deduplicator
Remove duplicate lines from text online. Keep unique lines and remove duplicates efficiently.
Text Input
Introduction
The Text Deduplicator tool removes duplicate lines from text while preserving the unique ones. It is ideal for cleaning lists, log entries, or datasets where repeated lines add noise.
When to use this tool
Use this tool whenever you have text with repeated lines: cleaning email lists, normalizing tag collections, or simplifying exported logs.
How to use
Paste your text
Paste any text that may contain duplicate lines into the input box, such as lists or log snippets.
Choose deduplication options
Optionally decide whether to ignore case or trim whitespace when comparing lines.
Remove duplicates
Click the deduplicate button to generate a version with only unique lines kept.
Copy the cleaned text
Copy the result into your editor, spreadsheet, or script for further processing.
Examples
Cleaning a mailing list
Remove duplicate email addresses from a list before importing it into your newsletter tool.
FAQ
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