Tool
CSV to JSON Converter Pro
Convert CSV rows into a JSON array with file drop, header detection, and type inference.
Developer Tools
What this tool does
Paste CSV text and convert each row into a JSON object using the header row as keys.
How to use
- Drop a .csv file or paste CSV text.
- Toggle first row is header if your file has no header row.
- Enable type inference for numbers and booleans, then copy or download JSON.
Examples
Basic CSV
Input: id,name 1,Ada 2,Grace
Output: [{"id":"1","name":"Ada"},{"id":"2","name":"Grace"}]
Header values become JSON keys for each row.
Learn more
CSV to JSON round trips
After editing CSV in Excel, convert back to JSON for APIs and config files. Preview column types before importing large datasets.
Common use cases
- Convert spreadsheet exports for APIs
- Turn CSV fixtures into JSON test data
- Migrate tabular data into app configs
FAQ
Can I use CSV without a header row?
Yes. Uncheck first row is header and columns will be named column_1, column_2, etc.
Can I use custom delimiters?
This first version expects comma-separated values with a header row.
Explore related workflows
JSON & CSV Pro workflow
- JSON to CSV Converter ProConvert JSON or NDJSON arrays into CSV with file drop, column reorder, flatten, and Excel BOM.
- Nested JSON to CSV ConverterFlatten nested JSON objects into CSV using dot notation column keys.
- CSV to HTML TableConvert CSV data into a styled HTML table snippet for emails and web pages.
- JSON Formatter and ValidatorValidate, pretty-print, and minify JSON with clear parse error messages.
Export pipeline
Last reviewed: 2026-05-23