Remove Duplicate Lines, Dedupe Lists Online Free
Paste a list, get back only unique lines, with options for case, spaces and empty lines.
About this tool
Paste any line-based list (keywords, URLs, emails, IDs) and get back only the unique lines, keeping the original order. You can ignore differences in capitalisation and stray spaces, drop blank lines, and see the list of duplicates that were removed with how many times each appeared.
SEOs use it to clean keyword lists; developers use it to dedupe data before imports.
How to use
- 1. Paste your list, one item per line.
- 2. Choose the options you want. The result updates as you type.
- 3. Copy the clean list.
Frequently asked questions
Is comparison case-sensitive?
By default yes. Tick Ignore case to treat 'Apple' and 'apple' as the same line; the first spelling is kept.
Is order preserved?
Yes, the first occurrence of each line keeps its position, unless you tick Sort A–Z.
Is my list uploaded?
No, it is processed in your browser.
Is it free?
Yes, unlimited use with no signup.
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