Duplicate remover
Duplicate Remover Online
Paste text, lists, or file contents and remove repeated items in your browser. Start with line deduplication, then adjust delimiters, sorting, case handling, or duplicate-only output when needed.
Duplicate remover
A focused duplicate remover for everyday text cleanup
Same fast tool, clearer default task
This page opens the core remover in the standard line-dedupe mode, which fits pasted lists, copied spreadsheet columns, logs, and plain text.
Useful when the input format is not known yet
Start with newline-separated text, then switch delimiters, matching rules, or duplicate-only output without leaving the page.
Built for quick deduplication
Paste or upload
Use text, a list, or a TXT / CSV file without sending content to a server.
Clean duplicates
Keep the first occurrence by default, or use the visible options for sorting and matching.
Copy the result
Copy the deduped result, repeated values, once-only values, or a counted duplicate report.
Duplicate remover FAQ
What does a duplicate remover do?
It compares each line or item, keeps one copy, and removes repeated values from the output.
Is my text uploaded?
No. The duplicate remover runs in your browser, and input/output fields are masked for analytics.
Popular tools
Open the duplicate remover for a specific task
These pages use the same browser-based tool, with presets and guidance tuned for common duplicate-removal tasks.
Line dedupe
Remove Duplicate Lines Online
Clean repeated lines while preserving the original order. This preset is tuned for newline-separated text, logs, code snippets, and pasted lists.
List dedupe
Remove Duplicates From a List Online
Clean comma-separated lists, pasted spreadsheets, tags, IDs, and short item lists. This preset starts with comma splitting and trims extra spaces automatically.
TXT and CSV
Remove Duplicates From TXT or CSV Files
Drop or upload a TXT, CSV, log, Markdown, or JSON text file and dedupe its contents locally in your browser.