Remove Duplicate Lines
Cleaning large lists of data can be exhausting. Our Remove Duplicate Lines tool does the tedious work for you in milliseconds. Whether you're cleaning email lists, log files, or simple grocery lists, this tool ensures every line is unique and valuable.
We handle everything from simple string matching to case-sensitive comparisons, giving you complete control over your data cleanup.
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How to Remove Duplicates
- 1
Paste your list or text into the input box.
- 2
Toggle 'Case Sensitive' if you want to distinguish between 'Apple' and 'apple'.
- 3
Click 'Remove Duplicates' and copy your clean, unique list.
Data Hygiene Tips
What counts as a duplicate?
By default, any two lines that are character-for-character identical are considered duplicates.
Blank Lines
Our tool automatically removes empty lines to ensure your final list is as compact and clean as possible.
Frequently Asked Questions
Can I process CSV files?
Yes! Paste the content of your CSV. We will remove duplicate rows while preserving your column structure.
Does it sort the output?
No, it preserves the original order of your unique items. Use our 'Sort Text' tool if you need them alphabetized afterwards.
Why Use This Tool?
- ✓Handles thousands of lines instantly
- ✓Optional case-sensitive matching
- ✓Removes trailing and leading whitespace
- ✓100% secure client-side processing