Data Quality Checker

What data quality metrics does this tool analyze?

The tool provides comprehensive analysis including completeness, uniqueness, validity, and consistency scores. It detects duplicates, outliers, missing values, validates email and date formats, and provides detailed column statistics.

How do I upload and analyze my data?

Upload CSV or JSON files or paste data directly into the tool. Click "Analyze Data Quality" to get instant results. All processing happens in your browser - your data never leaves your device.

Does this tool work with large datasets?

The tool processes data entirely in your browser. Performance depends on your device capabilities. For optimal performance, we recommend datasets under 50,000 rows for smooth analysis.

Is my data secure when using this tool?

Yes, completely secure. All data processing happens locally in your browser. No data is uploaded to servers or stored externally. Your sensitive data remains private and secure.

Can I export the analysis results and cleaned data?

Yes! You can export detailed quality reports as JSON files and download cleaned data (with duplicates removed) as CSV files. Perfect for documentation and further data processing.