Local CSV Beautifier

Upload or paste a CSV, clean it, review the diff, and download the result. Nothing is sent to a server.

Why use this local CSV cleaner

If your spreadsheets feel messy, use this before importing into BI, dashboards, or reporting tools.

Teams:Clean exports before uploading to Google Sheets.

Finance:Normalize dates and numbers before review.

Analytics:Drop duplicates and blank rows to reduce noise.

Freelancers:Prepare client exports without extra tooling.

Do my files upload to a server?

No. All transformations happen locally in your browser and the cleaned file is generated on-device.

Can I use it for large files?

Yes, within browser limits. For very large CSV files, try removing unnecessary columns first for best performance.

Can I reuse settings?

Yes, save and reload cleaning profiles in your browser for repeatable results.

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Save current settings as profile

Load a CSV and run cleanup.