How to CSV Diagnostic
- 1Upload the CSV that is failing or looks suspicious
- 2Review the diagnostic report and recommendations
- 3Repair the file or download the report
Optimize & Repair · browser workspace
Diagnose and Validate CSV Files
Find delimiter, encoding, header, row-shape, type, and data-quality problems before importing a CSV file.
Quick start
Built for understanding why a csv import fails before applying a repair.
Everything runs in your browser, so you can test the workflow with sample data when available before using production files.
Output: A JSON diagnostic report with actionable data-quality findings.
- 1Upload the problematic file.
- 2Review delimiter, encoding, headers, row-shape, and type findings.
- 3Use the recommended repair tool and re-check the result.
Preparing your private workspace…
Why Use This Tool?
- ✓Detects inconsistent rows
- ✓Finds duplicate and empty headers
- ✓Reports delimiter and line endings
- ✓Shows type and missing-value signals
Frequently Asked Questions
Does the diagnostic change my file?
No. It reports problems without changing the original file.
Can it fix issues?
Use the recommended repair or cleaning tool after reviewing the report.
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