csv-quality-audit

Paste non-sensitive comma-delimited CSV and receive a Markdown quality report plus a copyable CSV export. Detects empty cells, exact duplicate records, formula-like prefixes and record-width errors; reports per-column distinct counts and preserved leading-zero identifiers. Optional outer-whitespace trimming and exact-duplicate removal, with record-level change logs and input/output SHA-256 hashes. First record must contain unique non-empty headers. Up to 100,000 UTF-8 bytes, 3,000 data rows and 50 columns. No missing values invented, no numeric coercion, no date inference, no charts or external research. Do not submit personal, financial-account or other sensitive data. Price: 10 USDC.