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A cleaner list starts here.

Remove duplicate rows, trim whitespace and normalize email addresses and company domains. Preview the result, keep a review report, and download your cleaned CSV.

Your CSV stays in this browser tab. File contents are not uploaded or saved. Up to 5 MB and 20,000 rows. This checks formatting, not whether a company exists, an email can receive mail, or a contact matches your ICP.

Keep the evidence. Clean the formatting.

The tool never fills missing facts or guesses employee counts, job titles or email addresses. Keep the source URL and observation date in your own columns: they travel with the row.

Try a reproducible example

Load the built-in sample and click Clean CSV. Four input rows become two: one duplicate and one empty row are removed. The example uses reserved .example domains and fictional people.

Need missing data, too?

AstroFabric can discover and enrich company and contact records with source evidence. Explore enrichment or start a 3-day trial with 200 credits.