HubSpot CSV Validator
HubSpot CSV Validator.
Validate HubSpot contact import CSVs — email, name fields, and format rules.
Your files never leave your device
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What it does
Validate HubSpot contact import CSVs — email, name fields, and format rules.
Why use it
Validate HubSpot CSV imports before upload failures waste hours — checks required columns, formats, and data quality.
Example input
email,firstname,lastname alice@example.com,Alice,Smith bob@example.com,Bob,Jones
Example output
✓ Valid for import Health Score: 100/100 (Grade A) Email column format checks passed
Health Score sample
Health Score: 82/100 (Grade B)
Issues Found:
• 14 duplicate rows
• 3 malformed dates
• 21 missing emails
• 2 inconsistent delimiters
Frequently Asked Questions
Is my data uploaded when using HubSpot CSV Validator?
No. All processing runs locally in your browser. Your files never leave your device.
Do I need an account?
No account is required. All tools are free and work instantly.
What columns does HubSpot require?
This validator checks HubSpot-specific required columns and formats. Upload your file to see a detailed issue list.