CSV Validator
Validate CSV files for structural consistency — column counts, types, headers, and empty cells.
Drop a .csv file or click to browseMax 25 MB
Paste or drop a CSV file, then click Validate to inspect its structure.
CSV Validator
This validator parses CSV text or files directly in your browser — nothing is uploaded to a server. It checks for inconsistent column counts, duplicate headers, columns that are always empty, and type inconsistencies (e.g. a mostly-numeric column with a stray text value). The per-column table shows inferred type, percentage of empty cells, and unique value count for quick data-quality review.
Private & free — this tool runs entirely in your browser.
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