JSON to CSV Converter
Upload your JSON or paste data, get a CSV file. Handles nested objects and arrays. 100% client-side — your data never leaves your browser.
Drag & drop your JSON here
or click to browse · JSON files up to 10 MB
Output Preview (first 5 rows)
Conversion Complete!
What is JSON to CSV Conversion?
JSON to CSV conversion extracts tabular data from JSON arrays and exports as comma-separated values. FreeCVT converts in your browser.
Understanding the Formats
JSON Format
JSON is a lightweight data format using key-value pairs and arrays.
CSV Format
CSV is a plain-text format for tabular data, universally supported by spreadsheets and databases.
When to Use This Converter
- Export JSON API responses to Excel
- Convert JSON database backups to spreadsheets
- Prepare JSON data for data analysis tools
Limitations
- Deeply nested JSON objects are flattened with dot notation
- Arrays within objects are joined with semicolons
- Very large JSON files may be slow to process
Why Freecvt?
100% Private
Your data is processed in your browser. Nothing is uploaded to any server.
Lightning Fast
Conversion happens instantly in your browser. No waiting for uploads.
Works Everywhere
Runs on any device with a modern browser. No installation required.
Frequently Asked Questions
How are nested objects handled?
Nested objects are flattened using dot notation.
Can I paste JSON directly?
Yes! Use the text area to paste your JSON data.
What if my JSON is not an array?
Single objects are wrapped in an array automatically.
Is my data uploaded?
No. Everything happens in your browser.