1. Paste your repeated lines
Paste one item per line from a document, spreadsheet, keyword list, export, CMS field, or copied source.
Free duplicate line remover · cleanup tool · browser-based
Remove Duplicate Lines Online
Paste repeated lines, copied rows, keyword lists, or exported text. Remove duplicates, review the unique output, then copy or download the cleaned result.
Input lines
Paste lists, rows, exports, copied data, or text where repeated lines should be removed.
Unique lines
Review the de-duplicated output, then copy, download, or reuse it as input.
0Original lines
0Unique lines kept
0Duplicates removed
0Empty lines removed
Ready. Paste text or load the sample to begin.
Processed locally in your browserRuns in your browser for fast cleanup. Avoid pasting highly sensitive text into any online utility.
How to remove duplicate lines
Use this tool when a list, export, or copied table contains repeated rows that need to be cleaned quickly.
2. Choose a duplicate cleanup mode
Use the default mode to preserve order, ignore-case mode for capitalization differences, or clean-list mode for a sorted unique list.
3. Copy or download the unique result
Review the output, then copy it, download it as a .txt file, or use it as input for another cleanup pass.
Common duplicate line cleanup use cases
Duplicate line removal is useful when copied or exported text contains repeated rows.
Keyword and SEO lists
Clean repeated keywords, URL lists, titles, tags, and campaign notes before editing or importing.
Spreadsheets and exports
Paste rows from spreadsheets, CSV-like exports, forms, product lists, or logs to remove repeated entries.
Documents and copied text
Clean notes, copied PDF text, AI output, and lists before publishing or sharing.
Duplicate line cleanup tips
Choose the cleanup mode that keeps the structure you still need.
Preserve order for most lists
Default duplicate removal is safest when order matters because it keeps the first occurrence.
Use ignore case for messy sources
Ignore-case mode helps when capitalization changes should not create separate list items.
Use clean-list mode for final lists
Clean-list mode is useful when the final output should be trimmed, unique, and alphabetized.
Remove Duplicate Lines FAQ
Does this duplicate line remover keep the original order?
Yes. The default mode keeps the first version of each line and removes later exact duplicates while preserving the original order.
Can it ignore capitalization when removing duplicate lines?
Yes. Use the ignore-case mode when Apple and apple should be treated as the same line.
Does this tool upload my text?
No. The cleanup runs in your browser for normal use, so you can remove duplicate lines without creating an account.
What kinds of text can I clean?
You can clean lists, spreadsheet rows, copied exports, keyword lists, notes, CSV-like text, and pasted document lines.
Helpful text cleanup guides
Guides for cleaning pasted text, organizing lines, and preparing copy for publishing workflows.
