Remove Duplicate Lines
Free CleanRemove duplicate lines from text and optionally sort the results.
Deduplication Options
Result
Enter text above and click "Remove Duplicates" to see the result
Removed Duplicates
Keyboard Shortcuts
Everything You Need
Powerful features designed to make your text work easier and faster.
4 Comparison Modes
Exact match, case-insensitive, trim whitespace before comparing, or trim + case-insensitive for maximum flexibility.
Keep First or Last
Choose to keep the first or last occurrence of each duplicate line — control which version is preserved.
5 Sort Options
No sorting, A→Z, Z→A, by length (shortest first), or by length (longest first) for organized output.
Ignore Empty Lines
Optionally exclude blank lines from deduplication — keep your text structure intact while removing content duplicates.
Trim Output Lines
Automatically trim whitespace from each line in the output for clean, consistent results.
Show Removed Duplicates
Toggle a panel that displays all removed duplicate lines — verify what was removed at a glance.
Live Stats Dashboard
See total lines, unique lines, duplicates removed, and percentage reduction in real-time stat cards.
Live Preview
Results update instantly as you type or change options — no need to click a button every time.
Download as File
Export your deduplicated text as a .txt file with one click.
One-Click Copy
Copy the cleaned result to your clipboard instantly with visual confirmation.
Keyboard Shortcuts
Ctrl+Enter to run, Ctrl+Shift+C to copy, Ctrl+Shift+K to clear, Ctrl+I to focus input.
100% Private
All deduplication happens in your browser. Your text never leaves your device.
Simple as 1-2-3
No learning curve. Get results in seconds with our intuitive workflow.
Paste Your Text
Enter or paste the text with duplicate lines into the input area.
Choose Options
Select comparison mode, keep strategy, sort order, and toggle options.
Click "Remove Duplicates"
Press the button or use Ctrl+Enter. With live preview, results update automatically.
Copy or Download
Copy the deduplicated text or download it as a file.
Who Is It For?
Designed for professionals, students, and creators across industries.
Data Cleaning
Remove duplicate entries from lists, databases, CSV data, and contact lists for clean datasets.
Developers
Deduplicate log entries, config lines, import lists, and code snippets for cleaner codebases.
Content Editors
Remove repeated lines from articles, transcripts, and compiled content for polished output.
SEO & Marketing
Clean keyword lists, URL lists, and tag sets by removing duplicates before analysis.
Why Choose This Tool?
Real advantages that save you time and protect your privacy.
12 Features in One Tool
4 comparison modes, keep first/last, 5 sort options, ignore empties, trim output, show removed, live stats, and more.
See What Was Removed
The removed duplicates panel shows exactly which lines were stripped — full transparency.
Real-Time Statistics
Track total lines, unique lines, removed count, and reduction percentage as you work.
Free Forever
No signup, no limits. Deduplicate text of any length, completely free.
Frequently Asked Questions
Everything you need to know about this tool.
What comparison modes are available?
Can I keep the last occurrence instead of the first?
Can I sort the results?
Is there a limit on text length?
100% Private. 100% Free.
This tool runs entirely in your browser. Your text is never uploaded to any server. No signup, no tracking, no hidden costs — forever.