Remove Duplicates & Sort
Remove duplicate lines, sort alphabetically or numerically, trim spaces and remove empty lines from any list.
How to use Remove Duplicates & Sort
- Paste your list, one item per line.
- Choose options like sort order, case sensitivity and trimming.
- Copy the cleaned list.
Frequently asked questions
Is the original order kept?
Yes, unless you choose a sort option. The first occurrence of each line is kept.
Can it ignore upper/lower case?
Yes — turn off “Case sensitive” to treat “Apple” and “apple” as duplicates.
Is Remove Duplicates & Sort free?
Yes. Remove Duplicates & Sort is completely free, with no sign-up, no watermark and no usage limits.
Is my data uploaded to a server?
No. Remove Duplicates & Sort runs entirely in your browser. Your files and text never leave your device.
Does it work offline?
Yes. After Red Cat Tools has loaded once, this tool keeps working without an internet connection. You can also install Red Cat Tools as an app.
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