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JSON to CSV Converter

Easily convert JSON data into Comma-Separated Values (CSV) format.

Drag & Drop your .json file here

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JSON Input

CSV Output

Why Use This Tool? ✅

Simplifies Data Conversion

Easily switch from the nested structure of JSON to the universally compatible CSV format.

Supports Complex Data

Intelligently flattens nested JSON objects, creating clear, dot-separated headers.

User-Friendly Interface

Paste your data or upload a file and get your CSV with a single click. No expertise needed.

Ideal for Spreadsheets

Perfect for preparing complex API data for use in Excel, Google Sheets, or databases.

From Nested to Flat: A Guide to JSON and CSV 📜

In the world of data, information is structured in many ways. JSON (JavaScript Object Notation) is fantastic for web APIs and applications due to its flexible, nested structure. However, for data analysis, spreadsheets, and many databases, a simple, flat, tabular format like CSV (Comma-Separated Values) is the industry standard.

What is JSON?

JSON is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse. It's built on two structures: a collection of name/value pairs (an "object") and an ordered list of values (an "array"). Its ability to nest objects within objects makes it extremely powerful for representing complex data hierarchies.

What is CSV?

CSV is a simple text format for storing tabular data. Each line in the file represents a row in a table, and each value within that row is separated by a comma. It is the most common format for importing and exporting data from spreadsheets (like Microsoft Excel, Google Sheets) and databases.

The Challenge: Flattening and Formatting

The main challenge in converting JSON to CSV is handling nested objects and ensuring the output is valid. This tool uses two key processes:

  • Flattening: For a nested object like {"user": {"name": "John"}}, it creates a distinct column header by joining the keys (e.g., user.name). This preserves the data's relationship in a flat format.
  • CSV Sanitization: If a value contains a comma or a double quote, the entire value is enclosed in double quotes (" ") to prevent the file from breaking when opened in a spreadsheet program.

Whether you're a data analyst cleaning API responses, a developer migrating data, or a student needing to view data in a spreadsheet, this converter streamlines the process, handling complex structures automatically so you can focus on the data itself.