JSON to CSV Converter - Free Online

Convert a JSON array of objects to a properly formatted CSV file. Headers auto-detected from keys. Free, instant download.

Delimiter

Options

Include Header Row

0 characters

Input is never stored, logged, or shared.

How to Use JSON to CSV Converter

Enter JSON ArrayPaste your JSON array of objects into the textarea

Choose OptionsSelect delimiter and whether to include headers

Convert & DownloadClick the button to convert and download your CSV file

JSON to CSV Converter - Free Developer Utility

JSON to CSV Converter - use this json to csv tool to transform JSON arrays into downloadable CSV spreadsheet files instantly. REST APIs return data in JSON format, but most spreadsheet users, business analysts, and data scientists work in CSV or Excel. Manually converting json to csv is error-prone and tedious for large datasets. Our converter automatically detects all unique keys across all objects in your JSON array, builds the correct CSV header row, and outputs every value properly escaped and quoted. Handles missing fields across objects - if some records have keys that others do not, the csv output fills those cells with empty values rather than shifting columns.

Keywords and Common Use Cases

Developers search for this tool using terms like: json to csv, convert json to csv, json array to csv, json csv converter, export json csv. Used by backend developers, frontend engineers, DevOps professionals, and students working on web projects.

Zero Data Retention Policy

Every input you enter is processed in memory and immediately discarded. We do not log inputs, store results, or send your data to any third party. Code, API tokens, passwords, and sensitive strings remain completely private.

Frequently Asked Questions

The converter expects a JSON array of objects - [{"key":"value",...}, {...}]. Each object in the array becomes one row in the CSV. The keys from the objects become the column headers.

All unique keys across all objects are collected for the header. Objects missing certain keys get empty cells for those columns. No data is lost or shifted.

Wrap it in an array first: [{"your":"object"}]. This gives you a single-row CSV with the object keys as headers.

Yes. Values containing commas, double quotes, or newlines are properly quoted and escaped per RFC 4180 CSV specification. Double quotes within values are escaped as double double-quotes.