csv
CSV to JSON
Convert CSV data into a JSON array
3 free tools
CSV (Comma-Separated Values) is the universal format for exchanging tabular data between spreadsheets, databases, and APIs. Our free online CSV tools let you convert CSV to JSON arrays, convert JSON back to CSV, validate CSV structure for column consistency, and format raw comma-separated data — all without uploading your file to any server.
CSV is a flat, two-dimensional table format — rows and columns. JSON is hierarchical and supports nested objects and arrays. CSV is ideal for spreadsheets; JSON is ideal for APIs and web applications.
According to RFC 4180, values containing commas must be wrapped in double quotes. Our tools correctly parse and generate quoted CSV values so commas inside data are preserved.