Why it matters
- Broken email addresses waste campaign sends and pollute CRM imports.
- CleanCSV can flag invalid-looking email values in likely email columns.
- Manual review and AI guidance help you correct edge cases safely.
CSV cleanup landing page
Validate Email Addresses in CSV
Find broken email addresses in CSV columns before sending campaigns, syncing CRMs, or importing contacts.
Upload a messy spreadsheet
Supports CSV, TSV, XLSX, and XLS. Current plan: Free with files up to 1 MB and 5 analyses per day.
How CleanCSV handles it
- Upload the file that contains contact data.
- Inspect the rows flagged as invalid email values.
- Correct the bad values and re-export clean contact data.
FAQ
Does CleanCSV auto-correct invalid emails?
No. Invalid emails are flagged for manual review because automatic fixes can easily guess wrong.
How does email validation work?
The current version applies a strict pattern check to likely email columns and values containing an at-sign.
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