Paste CSV or drop a .csv file - the converter auto-detects the delimiter (comma, semicolon, tab, pipe), uses the first row as JSON keys, and infers types for each column (numbers stay numbers, 'true'/'false' become booleans, dates parse to ISO strings). Output is clean, properly-quoted JSON ready to paste into code, configs, or REST API requests.
When to use this
Use when: importing a spreadsheet export into an API that wants JSON, converting an Excel export for a Node.js / Python script, seeding test data for a backend, migrating a Google Sheet to a JSON config file in a Git repo.
Frequently Asked Questions
What if my CSV has unusual delimiters?
Auto-detect handles comma, semicolon, tab, and pipe. For exotic delimiters, you can override the setting in the advanced panel. The converter uses Papa Parse under the hood - the same library many production data pipelines use.
Does it handle quoted fields with commas inside?
Yes - properly-quoted fields (RFC 4180 spec) are parsed correctly. A field like `"Hello, world"` stays as a single value even though it contains a comma. Unquoted fields with commas will break parsing - quote them first if needed.
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