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Transform CSV spreadsheet data into JSON format for API imports, database seeding, and application configuration. Free and instant.
You have data in a spreadsheet (CSV export from Excel, Google Sheets, or a database dump) and need to import it into an API that only accepts JSON. Manually reformatting rows and columns into JSON objects is error-prone and tedious, especially with hundreds or thousands of rows. Custom scripts work but take time to write and debug.
Our CSV to JSON converter handles the transformation instantly. Paste your CSV data or upload a file, and get properly formatted JSON output. The tool handles commas inside quoted fields, different delimiters, header row mapping, and nested structures. Copy the JSON directly or download it as a file.
Open CSV to JSON ConverterGo to the CSV to JSON converter tool.
Paste CSV text directly or upload a .csv file. The first row is treated as column headers by default.
Choose the delimiter (comma, tab, semicolon). Toggle header row on or off.
Click Convert. The JSON output appears instantly in the right panel.
Copy the JSON to your clipboard or download as a .json file for API import.
No signup, no upload, 100% private. Works right in your browser.
Open CSV to JSON