table_viewDeveloper Tools22 TOOLS AVAILABLE

JSON to CSV

Flatten complex nested JSON data into a tabular CSV format suitable for data analysis and Excel.

upload_fileJSON input

upload_fileJSON input

lines18
columns6
rows2
JSON data

table_viewCSV output

Preview
PreviewCSV
id,name,email,role,city,country
1,Jane Cooper,jane@example.com,Admin,Ho Chi Minh City,Vietnam
2,Cameron Williamson,cameron@example.com,Internal,San Francisco,USA

How this tool is meant to help

Flatten complex nested JSON data into a tabular CSV format suitable for data analysis and Excel. This page keeps one task in focus so you can move from input to output without jumping between tabs.

Typical workflow

Start with clean source data, review the live result, and export only after the output matches your goal.

Quality checks

Look for edge cases, confirm the formatting, and compare the result with a related utility when you need a second pass.

Related Utilities

JSON formatter, JSON validator, CSV to JSON. This page keeps one task in focus so you can move from input to output without jumping between tabs.

Related Utilities

Precision

Advanced utility for web development and data engineering.

Flattened columns

Properties like `user.name` are turned into dot-separated columns when this option is enabled.

Safe CSV escaping

Cells are quoted only when needed, with separators and embedded quotes escaped safely.

Frequently Asked Questions

How does nested object flattening work?expand_more
When enabled, a nested property like `user.name` becomes a flat `user.name` column instead of staying nested.
How are arrays and nested values handled?expand_more
Arrays and non-primitive values are serialized as JSON inside a cell. If the input is an array of objects, each item becomes a row.
How large of a JSON file can I convert?expand_more
The converter runs in your browser and can usually handle large files, depending on your device memory.