Remove Duplicate Lines from Text Online
Remove duplicate lines from text, with sort and case options, in your browser.
🔒 100% client-side — no data sent
Remove duplicate lines from a list or text, with optional alphabetical sorting and case handling. Everything is processed 100% in your browser: your data stays private and local.
What is it for?
- ▸ Deduplicate a list of emails or URLs pasted from a spreadsheet
- ▸ Clean a log file by removing identical lines
- ▸ Sort and deduplicate a list of keywords or tags
- ▸ Merge two lists while eliminating duplicates
FAQ
How do I remove duplicate lines from text?
Paste your text: the tool keeps the first occurrence of each line and removes all following repetitions. You can then copy the deduplicated result.
Can I sort the lines at the same time?
Yes. An option lets you sort the lines alphabetically in addition to deduplicating, which is handy for organizing lists of keywords, URLs or identifiers.
Does deduplication take case into account?
By default, two lines that differ only in case are treated as distinct. You can enable the case-insensitive option to treat them as duplicates.