JSON to CSV — Convert Online Free
Paste a JSON array of objects and convert it to a downloadable CSV file. Instantly. No sign-up required.
How to json to csv
- 1Paste a JSON array of objects into the input text area
- 2Click 'Convert' to generate the CSV output
- 3Review the CSV data in the output area
- 4Click 'Copy' to copy the CSV or 'Download .csv' to save it as a file
About This Tool
Converting JSON to CSV is a common task when you need to import data into spreadsheets, databases, or reporting tools that expect tabular formats. This tool takes a JSON array of objects and transforms it into comma-separated values with headers derived from the object keys.
The converter handles nested objects by flattening them with dot notation. For example,
a nested field like {"address": {"city": "London"}} becomes a column header
address.city with the value London. This ensures that no data
is lost during conversion, even with complex JSON structures.
All processing happens locally in your browser. Your JSON data is never sent to a server, making this JSON to CSV tool safe for sensitive datasets, API responses, and internal reports. There are no file size limits, no account requirements, and you can download the result as a .csv file with one click.
Frequently Asked Questions
The input should be a JSON array of objects, like [{"name": "Alice", "age": 30}, {"name": "Bob", "age": 25}]. Each object becomes a row, and the keys become column headers.
Nested objects are flattened using dot notation. For example, {"user": {"name": "Alice"}} produces a column called 'user.name'. Arrays within objects are converted to their JSON string representation.
The tool collects all unique keys across all objects in the array. If an object is missing a key, the corresponding CSV cell will be empty.
Yes. Values containing commas, double quotes, or newlines are automatically wrapped in double quotes and properly escaped following the CSV standard (RFC 4180).
No. All conversion happens locally in your browser. Your JSON is never sent to any server and is not stored or logged.