CSV to JSON Conversion: Common Pitfalls and How to Handle Them

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Converting data between CSV and JSON is a common task for developers working with spreadsheets and APIs, but edge cases can silently corrupt output. Values containing commas or double quotes require proper CSV parsing rather than a simple comma-split approach, which many basic converters fail to implement. Another frequent issue involves leading zeros in fields like ZIP codes, which can disappear if a converter automatically casts text to numeric JSON types. Regional locale differences may also cause spreadsheets to use semicolons instead of commas as delimiters, breaking naive parsers entirely. Developers are advised to use tools with full CSV specification support and to spot-check converted output against source data, especially rows containing special characters.

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