Developer Tools

CSV ↔ JSON Converter

Convert CSV to JSON and JSON to CSV. Handles headers and special characters including quoted fields.

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What is the Csv Json?

        

            
CSV (Comma-Separated Values) is the standard format for tabular data exports from spreadsheets and databases, while JSON is the preferred format for web APIs and modern data pipelines. The CSV ↔ JSON Converter bridges these two worlds, letting you transform flat tabular data into structured JSON objects or flatten JSON arrays back into CSV rows. It handles custom delimiters, quoted fields, and header detection automatically.

            
        

    

       
        

        
How to use the Csv Json

        

            
  1. Paste your CSV data (with or without headers) or JSON array into the input box.
  2. Select the conversion direction: CSV to JSON or JSON to CSV.
  3. If converting CSV, confirm whether the first row contains column headers.
  4. Choose the delimiter (comma, semicolon, or tab) if your CSV uses a non-standard separator.
  5. Click Convert and copy or download the result.

        

    

     

    
        

        
Frequently asked questions

                        

            
            

                Fields containing the delimiter character should be enclosed in double quotes in CSV format. The converter handles this automatically, preserving the data correctly on both input and output.
            

        

                        

            
            

                CSV is a flat format, so nested objects or arrays in JSON must be flattened first. The converter will warn you if it detects nested structures that cannot be represented cleanly in a CSV row.
            

        

                        

            
            

                By default it produces an array of objects, where each CSV row becomes an object and each column header becomes a key. This is the most common format for APIs and data processing.