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Original Lines
Remove Duplicate Lines Tool
Instantly find and remove duplicate lines from your text — 100% free, no signup
Clean Your Text Now
🔒 No signup required · Your text is never stored
Enter Your Text
Your text is processed locally in your browser and never stored or shared.
No file selected
Processing your text...
Results
0
Unique Lines
0
Duplicates Removed
0%
Reduction
Cleaned Text
Found Duplicates
No duplicates found yet.
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Remove duplicate lines from text instantly using this free online Remove Duplicate Lines tool. It helps you clean repeated lines from lists, documents, code, logs, or any large text in just one click.
This tool works directly in your browser — no login, no installation, and no data is stored. Simply paste your text, choose your options, and get a clean, unique list of lines in seconds.
Perfect for:
- Developers cleaning logs or code outputs
- SEO professionals removing duplicate keywords
- Writers and editors cleaning content
- Data cleaning and text processing tasks
Key Features:
- Smart Detection: Find exact or similar duplicate lines
- Multiple Options: Case sensitivity, trim spaces, ignore empty lines
- File Upload: Directly upload TXT, CSV, LOG, or MD files
- Real-time Processing: See results instantly as you type
- Privacy Focused: All processing happens in your browser
- Export Options: Copy or download cleaned text
- Statistics: Detailed count of removed duplicates
How to Use This Tool
1
Enter or Paste Text
Type or paste your text with duplicate lines into the input area. You can also upload a file.
2
Adjust Options
Choose processing options like case sensitivity, trim spaces, and sorting preferences.
3
Remove Duplicates
Click "Remove Duplicates" to process your text and see the cleaned version instantly.
4
Export Results
Copy the cleaned text or download it as a file for use in your projects.
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Frequently Asked Questions
Yes, our duplicate line remover is completely free with no hidden charges. No registration required, no usage limits, and no premium features locked behind paywalls.
No, your text is processed locally in your browser. We don't store or transmit your content to our servers, ensuring complete privacy.
There's no strict limit, but for optimal performance, we recommend keeping text under 50,000 lines. The tool can handle large texts but may slow down with extremely large files.
Yes! You can upload .txt, .csv, .log, and .md files using the upload button. The tool will extract and process the text content automatically.
We support TXT (plain text), CSV, LOG files, and Markdown files. For other formats, you can copy-paste the content directly into the text area.
Yes! The tool works perfectly with code files. Just paste your code, and it will remove duplicate lines while preserving the rest of your code structure.