CSV Health Score
CSV Health Score.
Run a comprehensive CSV health check with a 0–100 score, visual insights, grade, and actionable recommendations — all processed locally in your browser.
What Is a CSV Health Score?
A CSV Health Score is a comprehensive data quality metric that goes beyond simple pass/fail validation. Unlike basic validation that only checks structural conformity, our health score evaluates your entire dataset — missing values, duplicate rows, empty columns, type consistency, encoding issues, and more — producing a single 0–100 score with an A–F grade.
This makes it easy to communicate data quality to stakeholders, track improvements over time, and prioritize cleanup efforts. Because all analysis happens in your browser, you can safely score sensitive datasets without uploading them to any server.
Try our CSV Validator for detailed error listings, or the CSV Cleaner to fix issues identified in your health report.
Frequently Asked Questions
How is the CSV Health Score calculated?
The score starts at 100 and applies weighted deductions across nine checks: structural integrity (25%), missing values (15%), duplicates (15%), empty columns (10%), column consistency (15%), email validity (5%), date validity (5%), encoding (5%), and delimiter detection (5%).
Is my CSV file uploaded to a server?
No. The entire health analysis runs in your browser using JavaScript. Your file never leaves your device.
Can I download the health report?
Yes. After analysis, you can download the full report as JSON or Markdown for sharing with your team or documentation.
What grade should I aim for?
Grade A (90–100) indicates production-ready data. Grade B (80–89) is acceptable with minor cleanup. Grades C and below suggest significant data quality issues that should be resolved before import.