CSV to JSON
Convert CSV data to JSON format. Supports custom delimiters and header row detection.
About this tool
The CSV to JSON converter transforms tabular comma-separated data into structured JSON objects, using the first row as property keys by default. This is one of the most common data transformation tasks in web development, data analysis, and API integration work.
CSV is the universal export format for spreadsheets, databases, and data tools, but most modern APIs and web applications work with JSON. Converting between the two formats by hand or writing one-off scripts is time-consuming — this tool does it instantly and handles custom delimiters, quoted fields, and header detection automatically.
The tool supports custom delimiters (tabs, semicolons, pipes) in addition to commas, making it compatible with TSV and other delimiter-separated formats commonly exported by Excel, Google Sheets, and database management tools. The output is valid, properly formatted JSON ready to copy into your application.