Remove Duplicate Lines
Clean up messy lists by removing repeated lines in one click. Useful for email lists, keywords, inventory exports and copied text.
How to remove duplicate lines
- Paste your text or list into the input box.
- Choose options like Ignore case, Sort result or Trim whitespace.
- Click Remove Duplicates and review the cleaned output.
- Copy the result to use it in your document or spreadsheet.
FAQs
What does Ignore case do?
It treats lines that differ only in capitalization as duplicates, so "Handio" and "handio" are considered the same line.
Which duplicate is kept?
The first occurrence of each line is kept and all later duplicates are removed, preserving the original order unless you enable Sort result.
Does my text leave my device?
No. Deduplication runs entirely in your browser, so your data is never uploaded or stored anywhere.
Is this tool free?
Yes. All Handio tools are free with no sign-up and no limits on how much text you process.
Related Tools
Why use Remove Duplicate Lines?
Dedupe a CSV list or any pasted data so each item appears only once, before you import it into a spreadsheet, mailing tool or database.
- Clean up a contact or email list copied from a spreadsheet.
- Remove repeated keywords or tags before using them in a campaign.
- Deduplicate inventory SKUs and product exports pulled from a CSV.
Tips and Limits
The first occurrence of each line is kept and later duplicates are removed; enable Ignore case so "Apple" and "apple" count as the same line, and processing happens locally with no uploads.