About this tool
Remove duplicate lines, keep only unique or only repeated items, or count how often each item appears — case-sensitive or not.
Items are compared after optional trimming; the first (or last) spelling of each item is kept in its original order.
Example: apple, pear, Apple, kiwi, pear → apple, pear, kiwi (2 removed).
Without “match case”, “Apple” and “apple” count as the same item.
Quick steps
- Paste your text or open a file (or press Try an example).
- Choose the options — the result updates as you type.
- Copy the result or download it as a file.
Everything runs in your browser. Nothing you type is sent to 1CLIK.
FAQ
How does the Remove Duplicates & Count List Items work?
Items are compared after optional trimming; the first (or last) spelling of each item is kept in its original order.
What should I keep in mind?
Without “match case”, “Apple” and “apple” count as the same item.
Is my text uploaded or saved?
No. It is processed on your device in a separate background task that is stopped if it takes too long; nothing is stored or sent.