Lists collected from different places almost always contain repeats: email addresses pasted twice, keywords gathered from several tools, product names merged from spreadsheets. This utility removes duplicate lines from any block of text in one click, keeping each unique line once and preserving the order in which lines first appeared.
Options That Matter
Real-world lists are messy, so the tool gives you the controls that decide what counts as a duplicate. Case sensitivity lets you treat Apple and apple as the same or different lines. Trimming ignores stray spaces at the start or end of a line, which are the most common cause of near-duplicates slipping through. You can also drop blank lines entirely, and see exactly how many lines went in, how many came out and how many duplicates were removed.
How to Remove Duplicate Lines
- Paste your text into the input box, one item per line.
- Choose whether matching should ignore letter case.
- Decide if leading and trailing spaces should be trimmed.
- Click the remove button and review the cleaned list.
- Copy the result, or download it as a text file.
Lists People Clean With It
- Email and subscriber lists combined from multiple sources.
- Keyword, tag and hashtag collections for content work.
- Product names, SKUs and inventory lines from spreadsheets.
- Logs and data exports where repeated entries add noise.
Frequently Asked Questions
Does it keep the original order?
Yes. The first occurrence of each line stays in its place, and later repeats are removed, so the cleaned list reads like the original.
Can it sort the result alphabetically?
The cleaned output keeps the input order. If you need sorting, paste the result into a spreadsheet or list sorter afterwards.
Is my text sent to a server?
No. The comparison happens in your browser as you click, and the text never leaves your device.