Remove Duplicate Lines
Paste your text, remove duplicate lines instantly, and copy the cleaned result. No upload, no account.
Detected lines: 0
Paste text and remove duplicates to see the cleaned output.
How to use this tool
What this tool does and how it can help.
This tool removes duplicate lines from text while preserving the first occurrence and the original order. It runs entirely in your browser and returns a clean output immediately.
- Paste your text in the input area (one or many lines).
- Click Remove duplicates (or press Ctrl/Cmd + Enter).
- Review the cleaned result with duplicates removed.
- Copy the output and paste it wherever you need it.
This is useful for logs, CSV/TSV text, configuration blocks, and any copy-paste content that has repeated lines you want to deduplicate quickly.
FAQ
- Does it remove duplicate words or phrases too?
- No, this tool only removes duplicate full lines.
- Will it keep the original line order?
- Yes. The first occurrence of each line is preserved and duplicates are removed afterward.
- Can I use this on large text files?
- Yes, it runs client-side and works best for moderate sizes. Very large inputs should be tested progressively.