JSON to CSV

Convert a JSON array of objects into a CSV table.

A JSON to CSV converter turns an array of objects into a comma-separated table, using the union of all keys as columns.

How to Use the JSON to CSV

  1. Paste your JSON. Enter an array of objects.
  2. Download the CSV. Copy the CSV or download it as a file.

This tool processes your input locally in your browser. Nothing is uploaded.

What Is JSON to CSV?

Converting JSON to CSV lets you open API data in spreadsheets for analysis, reporting and sharing.

How the conversion works

The tool takes an array of objects, collects the union of all keys as columns, and writes one row per object. Nested objects are JSON-stringified into a single cell.

Key Features

  • Union of keys as columns
  • Proper escaping
  • Download as CSV

Examples

  • An array of user objects becomes a spreadsheet-friendly table.

Common Use Cases

  • Analyzing API data
  • Spreadsheet exports
  • Reporting

Tips & Best Practices

  • Ensure your JSON is an array of objects, not a single object.

Limitations

  • Nested structures are flattened into JSON strings.

Related Tools

JSON Formatter Format, validate and beautify JSON with configurable indentation. Developer Use Tool →
JSON Validator Check whether your JSON is valid and inspect its structure. Developer Use Tool →
Text Sorter Sort lines alphabetically or numerically, in ascending or descending order. Text Use Tool →

Related Articles

Reverse Lines – Complete Guide & Free Online Tool A line reverser flips the order of lines so the last line becomes the first — useful for reordering lists and data. Free online tool included. Read guide → Remove Duplicate Lines – Complete Guide & Free Online Tool A duplicate line remover scans your text and deletes repeated lines, keeping either the first or the last occurrence of each line. Free online tool included. Read guide → Remove Extra Spaces – Complete Guide & Free Online Tool A space remover collapses multiple spaces and tabs into single spaces, trims edges, and can collapse blank lines to clean up messy text. Free online tool included. Read guide → Text Cleaner – Complete Guide & Free Online Tool A text cleaner tidies messy text by removing extra spaces, trailing whitespace on lines and excessive blank lines, leaving clean, consistent content. Free online tool included. Read guide →

Frequently Asked Questions

What format do I need?
A JSON array of objects, e.g. [{"a":1},{"a":2}].
How are nested objects handled?
They are converted to JSON strings in a single cell.
Is it free?
Yes, and it runs locally.

Explore more free tools

Browse Developer Tools tools →