100% free, no signup required

Free Data Cleaning Tools

Clean, format, and validate your data right in the browser. No account needed, no file size limits on the free tier, no nonsense.

How It Works

Three steps. Zero friction.

1

Upload or paste

Drop your CSV file or paste data directly into the tool. Nothing leaves your browser until you say so.

2

Pick your fixes

Choose what to clean โ€” duplicates, formatting, validation, or all of the above. Preview changes before applying.

3

Download clean data

Export a clean CSV ready for import into Salesforce, HubSpot, Mailchimp, Facebook Ads, or any other platform.

Need more power?

NoSheet's full platform cleans millions of rows with AI, encrypts PII at the cell level, and lets you launch campaigns from one place.

Get NoSheet Free