Paste a list of emails, keywords or names and get a clean list with every repeated line removed.
What is the Remove Duplicate Lines?
Cleaning up a long list by hand is slow and easy to get wrong. This tool removes duplicate lines from any text instantly – email lists, keyword lists, product SKUs, phone numbers, names or URLs. It keeps the first occurrence of each line in its original order and tells you how many duplicates were removed.
Options let you ignore upper/lower case differences, trim extra spaces and drop empty lines, so near-duplicates like "Apple" and " apple " are cleaned too.
How to use the Remove Duplicate Lines
- Paste your list, one item per line.
- Choose whether to ignore case, trim spaces and remove empty lines.
- Copy the cleaned list of unique lines.
Common uses
- De-duplicating email or phone lists before a campaign.
- Cleaning SEO keyword lists from several tools.
- Removing repeated URLs from a sitemap or crawl export.
- Tidying data copied from Excel or Google Sheets.
Working with spreadsheets
Copy a column from Excel or Google Sheets, paste it here, remove the duplicates and paste the result back. For multi-column data, use your spreadsheet’s built-in "Remove duplicates" feature instead.
Frequently asked questions
Does it keep the original order?
Yes. Only later copies are removed.
Is the comparison case-sensitive?
By default yes; tick "Ignore case" to treat Apple and apple as the same.
How many lines can it handle?
Tens of thousands of lines work smoothly in modern browsers.
Is my list uploaded?
No. Everything happens in your browser.
This remove duplicate lines is 100% free, needs no signup and works on phones, tablets and computers. Your data is processed in your browser and never uploaded.
Last updated: · By NodifyTech