Remove duplicate lines
Paste a list to remove duplicate and empty lines, trim spaces, strip invisible characters, and sort, reverse or shuffle it. Your text stays in this tab.
Runs in your browser. Your files are never uploaded or stored.
Something not working, or missing an option?
How to use Remove duplicate lines
- Paste your list, one item per line.
- Choose what to clean up and how to order it.
- Copy the cleaned list.
Questions
What are invisible characters?
Zero-width spaces, soft hyphens and similar marks you can’t see. They break searches and code, and are sometimes added to track copied text.
Are my files uploaded?
No. The tool runs inside your browser, and the page is blocked from sending data anywhere. You can check by turning off your internet connection: it keeps working.
Open-source parts
This tool uses only features built into your browser: no third-party code.