How to use this Remove Duplicate Words

Remove repeated whitespace-separated words while preserving first occurrence order.

Enter, paste, upload, or choose the inputs shown in the tool above.
Adjust the available options for the result you need.
Review the output before copying, downloading, or using it elsewhere.

What this tool does

Deduplicate words with optional case-insensitive matching while keeping the first spelling encountered.

Practical tips and limits

Keep a copy of the original text before destructive cleanup. Use the preview/output count to confirm that separators, whitespace, and duplicates were handled the way you intended.