Validates CSV and reports row/column counts.
CSV Validator checks whether your CSV data is well-formed and reports a quick summary of its structure. Paste your CSV and the tool parses it in the browser, flagging the first parse error it finds or, when the data is valid, showing the total number of rows and the maximum number of columns. It's a fast way to lint and check CSV before importing it into a spreadsheet, database, or data pipeline.
No. The validation runs entirely in your browser using a client-side parser, and nothing you paste is uploaded or stored anywhere.
It reports the maximum number of columns found across all rows. If rows have inconsistent field counts, this reflects the widest row rather than a fixed schema.
No. Empty lines are skipped during parsing, so the row count only reflects non-empty rows.
The parser auto-detects the delimiter, and delimiter-detection notices are not treated as fatal errors. Only genuine parse problems, such as malformed quotes, are reported as failures.
No. It reports the first fatal parse error along with its row number, so fix that issue and re-run to surface any further problems.