CSV Doctor

CSV Doctor is a free, MIT-licensed offline Windows utility by ALMARFELD for CSV, TSV and delimited TXT diagnostics. Detect comma/semicolon/tab/pipe and supported encodings; inspect quoting, uneven rows, blank records and header problems; warn about formula risks and leading-zero/long identifiers. Review explicit repairs in a before/after preview, then export a separate UTF-8/BOM copy with chosen delimiter, CRLF/LF and a JSON report.

Originals and existing outputs are not overwritten. Content changes are opt-in. Failed strict parsing blocks export; ambiguous interpretations require explicit choice. Limits: 16 MiB, 100,000 records, 256 columns, 1,000,000 cells. CSV cannot prevent Excel reinterpretation; optional formula prefixing is not a universal security defense.

v1.0.0: Windows 10/11 x64, portable ZIP; run CSVDoctor.exe. WebView2 Runtime is required separately, not automatically installed. No accounts, uploads or telemetry. The executable is not Authenticode signed.

Features

Open CSV, TSV and delimited TXT; drag and drop supported
Detect comma, semicolon, tab or pipe and supported encodings
Diagnose quoting, uneven rows, blank records and header problems
Warn about formula prefixes, leading zeros and long numeric identifiers
Review explicit repairs in source and before/after previews
Export UTF-8/BOM, selected delimiter and CRLF/LF with a JSON report

Project Samples

CSV Doctor v1.0.0 — actual application with synthetic demonstration data.

Project Activity

See All Activity >

License

MIT License

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CSV Doctor Web Site

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Additional Project Details

Operating Systems

Windows

Registered

2 days ago

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