Validate and detect data types in your CSV columns
Click to upload or drag and drop
Supports .csv and .txt files
Validation results will appear here
name,age,email,active John,30,john@email.com,true Jane,25,jane@email.com,false Bob,invalid,bob@email.com,true
1. How do I validate data types in CSV?
Paste or upload your CSV data above and click validate. The tool will analyze each column's data type.
2. What data types are detected?
The tool detects numbers, dates, booleans, emails, and text fields automatically.
3. Can I see invalid values?
Yes, the results show how many values are valid or invalid for each column, with examples.
4. Is my data secure?
All validation happens in your browser. No data is uploaded to any server.
5. Can I use this tool for free?
Yes, this online data type validator is free to use.
6. Does it support large CSV files?
For very large files, browser performance may vary. For huge files, use a desktop tool.
7. Can I validate Excel files?
Export your Excel sheet as CSV, then upload it here for validation.
8. What browsers are supported?
All modern browsers are supported, including Chrome, Firefox, and Edge.
9. Can I copy the validation results?
You can copy the results manually or take a screenshot for your records.
10. What if my CSV is invalid?
The tool will show an error if your CSV is not valid or missing headers.