JSON to CSV Converter
Convert JSON arrays of objects (or a single object) into CSV.
Open JSON to CSV Converter
CSV to JSON Converter
Convert CSV data into structured JSON quickly.
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Frequently asked questions
Common questions about this tool.
CSV (Comma-Separated Values) is a tabular text format: rows are lines, columns are separated by delimiters—usually commas. It is common for spreadsheets and data exports.
JSON nests naturally, maps to objects in code, and is the lingua franca of web APIs and NoSQL-style documents. Converting helps glue spreadsheets to applications.
The first row is usually treated as column names so each following row becomes an object with those keys. Adjust options in the tool if your file has no header row.
Comma is the default. Some tools also let you pick tab or semicolon—check the converter options on the page for your file’s delimiter.
Yes. Use the JSON to CSV converter at /tools/json-to-csv-converter for arrays of objects or a single object; it pairs with this tool for round trips when your JSON shape matches.
It describes quoted fields, CRLF line endings, and escaping quotes by doubling them. Real-world CSV varies; tools may need options for quotes and delimiters.
Fields with commas or line breaks are wrapped in double quotes, with internal quotes escaped. Badly formed CSV often breaks parsers until quotes are fixed.
Array-of-arrays keeps column order only. Array-of-objects uses header names as keys, which is clearer in JSON APIs and when merging with other JSON data.
CSV cells are strings until you coerce them. Downstream code may need numbers or dates; TypeScript interfaces or schemas help catch type mistakes early.
Tabular data is rows and columns—think SQL tables or spreadsheets. CSV expresses that flatly; JSON can express the same rows as objects or add nested metadata per row.