JSON to CSV Converter
Convert JSON arrays into clean CSV, with headers generated from your object keys.
About JSON to CSV Converter
JSON APIs are convenient in code, but the moment someone wants the data in a spreadsheet, a database import, or Excel, CSV becomes the format of choice. This converter flattens a JSON array of objects into clean, properly quoted CSV with headers derived from your keys.
The tool builds columns from the union of all keys in your objects, so sparse records still share a consistent structure with empty cells where values are missing. Nested objects and arrays are serialized as JSON strings inside a single cell so nothing is lost, and fields containing commas, quotes, or newlines are quoted and escaped per CSV conventions.
Data analysts export API results to share with non-technical stakeholders, developers produce spreadsheet-friendly downloads from JSON endpoints, and QA teams turn JSON fixtures into reviewable tables. If a client asks for the data in Excel, this is the fastest route there.
How to Use
- Paste a JSON array of objects.
- Press Convert to CSV.
- Copy the CSV, ready for spreadsheets and data tools.
Example
[{"name":"Alice","age":30},{"name":"Bob","age":25}] name,age Alice,30 Bob,25
Keys from the first object become the header row, and each object becomes one CSV line.
FAQ
What if objects have different keys?
Columns are built from the union of all keys, with missing values left empty.
How are nested objects handled?
Nested values are serialized as JSON strings inside the cell so no data is lost.
Are special characters escaped?
Yes, commas, quotes, and newlines inside fields are quoted and escaped per CSV conventions.
How are empty or null values handled?
Nulls and missing keys become empty cells, so the CSV stays clean for spreadsheet software. True values remain as the word 'true' in the cell.
Can I convert a single object instead of an array?
A single object is treated as a one-row CSV with its keys as the header, which is handy for turning one record into a row.