CSV to JSON Converter
RFC 4180Convert CSV data to a JSON array online. Free client-side csv to json converter with optional type inference for numbers and booleans.
How to convert CSV to JSON online
This tool operates as a versatile csv to json and convert csv to json online. Paste your CSV data into the input editor. The first row must contain column headers - these become the keys in the output JSON objects. Each subsequent row becomes one element in the output JSON array. Choose your delimiter if your CSV uses something other than a comma, then click Convert.
Type inference smarter JSON output with CONVERT CSV TO JSON ONLINE
With Infer types enabled, the parser automatically converts numeric strings to JSON numbers and true/false strings to JSON booleans. Empty values and literal null strings become JSON null. This produces more accurate JSON that downstream code can use without additional parsing.
Is this CSV parser RFC 4180 compliant?
Yes. The parser handles fields wrapped in double-quotes, double-quote escaping (""), embedded commas within quoted fields, and both Windows (\r\n) and Unix (\n) line endings. Nothing is sent to a server - all parsing runs locally in your browser.
Frequently Asked Questions
How does the csv to json tool map headers to JSON keys?
The csv to json converter parses the first row as headers, matching them to object keys for all subsequent row objects.