JSON to CSV Converter Online
Convert JSON arrays to CSV format instantly in your browser. This free tool processes everything client-side, so your data stays completely private.
CSV ↔ JSON Converter
Convert between CSV and JSON formats. Handles quoted fields, custom delimiters, and nested commas.
About CSV ↔ JSON Conversion
- Handles quoted fields with commas, newlines, and escaped quotes (
""). - Supports custom delimiters: comma, tab, semicolon, and pipe.
- CSV → JSON uses the first row as object keys (headers).
- JSON → CSV flattens objects into columns — nested objects are stringified.
- Everything runs in your browser — no data is sent over the network.
What is JSON to CSV conversion?
JSON to CSV conversion takes an array of JSON objects and flattens them into a tabular CSV format. Object keys become column headers, and each object becomes a row. This is useful when you need to open structured API data in Excel, Google Sheets, or any other spreadsheet application for analysis or reporting.
Common use cases for JSON to CSV conversion
Analysts and developers convert JSON to CSV when exporting API responses for spreadsheet analysis, creating reports from database queries, preparing data for import into legacy systems that expect CSV, or sharing structured data with non-technical team members who prefer spreadsheets.
Frequently Asked Questions
How are nested JSON objects handled in CSV conversion?
Nested objects are flattened using dot notation for column headers. For example, a nested field like address.city becomes a column named "address.city" in the CSV output.
Can I convert JSON with inconsistent keys to CSV?
Yes. The converter collects all unique keys across all objects in the array and creates columns for each. Objects missing a key will have an empty cell for that column.
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