Contact file
Upload contacts.csv containing a header and two rows
An array containing two JSON objects
Loading page…ToolStack
Convert quoted CSV data into readable JSON objects.
Quick answer
Upload a CSV file up to 5 MB or paste CSV text directly.
Choose a UTF-8 CSV file up to 5 MB. The file is read locally and is not uploaded.
JSON output
Upload a CSV file or paste CSV data to begin.
Illustrative view
Quoted fields are parsed before headers are mapped onto each data row.
Upload a CSV file up to 5 MB or paste CSV text directly. The first row supplies property names, and every later row becomes a JSON object. Quoted commas, quotes, and multiline fields are parsed correctly.
Uploaded files are read locally, UTF-8 byte-order marks are removed, and values remain strings so identifiers, leading zeros, dates, and large numbers are not changed by automatic type guessing.
Upload contacts.csv containing a header and two rows
An array containing two JSON objects
A city field containing Mumbai, India
The complete value stays in one property
CSV files can be up to 5 MB. Larger files are rejected before they are read.
No. CSV has no universal type metadata, so every cell remains a string.
No. Empty or duplicate headers are rejected because they would overwrite object properties.
No. This tool runs locally in your browser, so the values or files you provide are not sent to a ToolStack server.
Keep going