Duplicate Line Remover & List Sorter
Clean, deduplicate, and organize text lists in seconds. Remove duplicate lines with case-sensitive or insensitive options, sort alphabetically (A–Z / Z–A) or by line length, trim whitespace, remove empty lines, add numbering, and export deduplicated lists — 100% private in your browser.
How It Works
Clean, deduplicate, and sort any text list in seconds:
Paste emails, names, keywords, or click a sample below.
Remove repeat lines and sort alphabetically (A-Z, Z-A) or by length.
1-click copy or download your clean list as .txt or .csv.
🔤 Sort List Order
Alphabetize, sort by length, or randomize
🔢 Numbering & Bullet Formats
Add prefixes or organize into lists
How to use this tool
Paste or type your list into the text box.
Click 'Remove Duplicates' to eliminate repeated lines.
Optionally sort your list alphabetically (A–Z or Z–A), by length, or randomize the order.
Use format controls to trim spaces, remove blank lines, or add line numbering.
Copy the cleaned list or download it as a .txt or .csv file.
Frequently asked questions
Can I ignore case when removing duplicate lines?
Yes. Toggle the 'Case-sensitive' switch off to treat 'Apple' and 'apple' as duplicates, or turn it on to preserve distinct capitalizations.
Can this tool sort numbers correctly (e.g. Item 2 before Item 10)?
Yes! Our alphabetical sorting engine uses natural alphanumeric sorting (Intl.Collator numeric collation), so 'Item 2' correctly sorts before 'Item 10'.
Are my lists uploaded to any server?
No. All deduplication and sorting operations execute strictly inside your browser's memory. Your data is 100% private.
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