Tiny Toolkit

Remove Duplicate Lines

Paste text with repeated lines and get a clean, deduplicated result instantly. The first occurrence of each line is kept in its original position; all subsequent duplicates are silently removed. Works well for cleaning up exported lists, log files, keyword sets, and any copy-pasted data that has accumulated repeats.

All processing happens in your browser. No data is sent to any server.

Frequently Asked Questions

Does it preserve the original order of unique lines?
Yes. The first occurrence of each line is kept in its original position and all subsequent duplicates are removed.
Is the comparison case-sensitive?
The tool offers both case-sensitive and case-insensitive deduplication — toggle the option to suit your needs.
Can it remove near-duplicate or fuzzy-matched lines?
No — only exact duplicates are removed (with optional case folding). Fuzzy deduplication requires a more specialised tool.

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