CSV to JSON Converter
Convert CSV data into a structured JSON array of objects.
Parse CSV into JSON
This converter reads CSV using a proper parser â not a naive split on commas â so quoted fields, embedded commas, escaped quotes, and multiline values are handled correctly. The first row becomes the object keys and each subsequent row becomes an object.
Smart type detection
- true / false become real booleans
- null becomes a JSON null
- Plain integers and decimals become numbers
- Values with leading zeros stay as strings (e.g. zip codes)
Robust CSV handling
Fields wrapped in double quotes can safely contain commas, line breaks, and escaped quotes (""). Blank lines are skipped, and Windows or Unix line endings are both supported.
From spreadsheet to API
Exporting a spreadsheet to CSV and converting it to JSON is the fastest way to seed a database, build test fixtures, or feed data into a JavaScript application. The resulting array of objects drops straight into fetch() requests, mock servers, and front-end state.
100% Private & Processed Locally
Every conversion on this page runs entirely inside your browser using JavaScript. Your data is never uploaded to a server, logged, or stored â making this tool safe even for sensitive payloads such as API responses, configuration files, and access tokens.
Because there is no network round-trip, conversions are instant and work even when you are offline. It is free to use with no sign-up, no rate limits, and no ads injected into your output.
Frequently Asked Questions
Common questions about the CSV to JSON Converter.