devcrate / Dev Utilities / CSV Deduplicate & Sort
Dev Utilities
Messy CSV, cleaned up.
Strip exact-duplicate rows and sort by a column name or number — useful for cleaning up exported spreadsheets before importing them elsewhere.
runs entirely in your browser — nothing is uploaded
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How to use the csv deduplicate & sort
- Paste your CSV, or click Load sample.
- Leave "remove duplicate rows" checked to strip exact duplicates.
- Optionally enter a column name or number to sort by, then click Clean.
Frequently asked questions about the CSV Deduplicate & Sort
Is my data uploaded anywhere when I use the CSV Deduplicate & Sort?
No. The CSV Deduplicate & Sort runs entirely in your browser using JavaScript — nothing you type, paste, or select is sent to any server. You can confirm this yourself by opening your browser's network tab while using it.
Is the CSV Deduplicate & Sort really free, and do I need an account?
Yes — the CSV Deduplicate & Sort is completely free, with no account, sign-up, or usage limit.
Does it work on mobile and in any browser?
The CSV Deduplicate & Sort works in any modern browser — Chrome, Firefox, Safari, or Edge — on desktop or mobile, since it's built with standard HTML, CSS, and JavaScript with no special requirements.