📊 JSON to CSV Converter

Convert JSON arrays to CSV format instantly. Paste any JSON array of objects and get a clean, comma-separated CSV output. Handles nested escaping, commas in values, and empty fields. Runs entirely in your browser — no data leaves your device.

What Is a JSON to CSV Converter?

This tool converts JSON arrays to CSV — the standard spreadsheet format used by Excel, Google Sheets, and database imports. Paste a JSON array of objects (like API responses or exported data), and the tool extracts headers from the first object's keys, then writes each row with properly escaped values. It handles commas, quotes, and newlines inside cell values using standard CSV escaping rules. Only JSON arrays of flat objects are supported — nested objects and arrays will be stringified. All processing is client-side.

📌 Embed This Tool

Add the JSON to CSV Converter to your website for free. Just copy and paste the code below.

<!-- JSON to CSV Converter — Embed by ToolStand -->
<div style="position:relative;width:100%;max-width:100%;overflow:hidden;">
  <iframe src="https://toolstand.io/tools/json-to-csv/embed.html"
    width="100%" height="500" frameborder="0"
    style="border:1px solid #e2e8f0;border-radius:8px;background:#fff;"
    loading="lazy"
    title="JSON to CSV Converter | ToolStand"
    allow="clipboard-write"
    sandbox="allow-scripts allow-same-origin allow-popups allow-forms">
  </iframe>
</div>

📋 When to Use

Use this tool when you need to import JSON data into Excel, Google Sheets, or a database. Ideal for converting API responses, exported JSON data, or config files into spreadsheet format. Great for data analysts, developers working with REST APIs, and anyone moving data between systems.

⚙️ How It Works

The tool JSON.parse()s your input, extracts column headers from the first object's keys, then iterates each row writing CSV values with proper escaping (quotes around values containing commas, double-quotes escaped per RFC 4180). Empty/null values become empty cells.

Limitations

Flat objects only. Nested objects/arrays are stringified with JSON.stringify().
Uniform structure assumed. Uses the first object's keys as headers — later objects with extra keys will have those values silently dropped.
No CSV-to-JSON. This is JSON to CSV only, not bidirectional.
~10 MB practical limit. Browser memory constraints apply.

Privacy

All conversion runs entirely in your browser. No data is sent to any server. Your JSON input is processed in memory and never persisted.

Frequently Asked Questions

What JSON structure is required?

A JSON array of objects, e.g. [{"key":"value"},...]. The first object determines column headers.

Does it handle nested JSON?

Nested objects and arrays are converted to strings using JSON.stringify(). They'll appear as escaped JSON inside the CSV cell.

How are special characters handled?

Values containing commas, double-quotes, or newlines are wrapped in double-quotes, and internal double-quotes are escaped per RFC 4180.

Is my data sent anywhere?

No. All conversion happens in your browser using standard JavaScript.