Free JSON to CSV Converter

Our JSON to CSV converter turns JSON data into a spreadsheet-ready CSV file entirely in your browser. Paste your JSON or upload a .json file, and the tool parses it, flattens any nested objects and arrays into clear columns, and shows a live table preview. When it looks right, download the CSV or copy it to your clipboard. It is built for developers, data and ops teams, and programmatic SEO builders who constantly move data between APIs, spreadsheets, and CMS imports.

The workflow is two steps. First, paste an array of objects (or a single object, or an API response like a data array) into the box, or upload a JSON file. Second, review the table preview, then download or copy the CSV. Nested values become dotted columns such as user.name or tags.0, and columns are the union of every key across your records, so rows with different fields still line up.

For Developers and Data Teams

Our tool gives you a fast, private way to reshape JSON without a script, so you can:

• Turn an API response into a CSV for a spreadsheet in seconds
• Flatten nested JSON without writing flattening code
• Keep sensitive data local, since nothing is uploaded to a server

For Programmatic SEO Builders

Our tool helps you prep the data layer behind template pages, so you can:

• Convert a JSON dataset into the CSV your page template expects
• Check column alignment before a bulk import
• Spot missing fields across records in the table preview

Why Use Our JSON to CSV Converter

• Private by default: Conversion happens in your browser. Your JSON is never sent to a server, which matters when the data is customer records, exports, or anything sensitive.
• Handles real JSON: Arrays of objects, a single object, and common API wrappers all work, and nested objects and arrays are flattened into readable columns instead of breaking the output.
• Spreadsheet ready: The CSV opens cleanly in Excel and Google Sheets, with proper quoting for values that contain commas, quotes, or line breaks.