How to Convert JSON to CSV Online
Converting JSON to CSV lets you open API data or config in Excel, Google Sheets, or import it into databases. This guide shows you how to do it online with a free tool—no signup, no server uploads.
Why Convert JSON to CSV?
JSON is great for APIs and apps, but spreadsheets and many ETL tools expect CSV. Converting JSON to CSV gives you a header row (from object keys) and one row per item when you have an array of objects. Nested fields can be flattened (e.g. user.name) so everything fits in columns.
Step 1: Get Your JSON
Have your JSON ready—for example from an API response, a .json file, or our JSON formatter. The best input is an array of objects with similar keys (e.g. a list of users or products). A single object works too and becomes one row.
Step 2: Use a Free JSON to CSV Converter
Open our JSON to CSV converter. Paste your JSON into the left box. Click Convert to CSV. The right box shows the CSV: first line is headers, then one line per row. Commas and quotes in values are escaped correctly.
Step 3: Copy or Download
Use Copy CSV to paste into a spreadsheet or another app. Use Download CSV to save a data.csv file. All processing runs in your browser—your data never leaves your device.
Nested JSON and Flattening
If your JSON has nested objects (e.g. user: { name: "Alice", email: "a@b.com" }), the tool flattens one level into columns like user.name, user.email. Deeper nesting is serialized as JSON in that cell. For more control you can pre-process with our JSON formatter or a script.
Summary
To convert JSON to CSV online: paste your JSON into the JSON to CSV tool, click Convert, then copy or download the CSV. Use it for exports, spreadsheets, or feeding data into tools that expect CSV. For other JSON tasks see our formatter, validator, and developer tools.