Convert JSON data to CSV format online for free. Export structured JSON to spreadsheet-ready CSV files instantly. No registration required.
Everything you need to know about using our JSON Convertor
Paste your JSON data or upload a JSON file. The converter flattens nested objects with dot notation (e.g., user.name), handles arrays by expanding rows or comma-separating values, and generates clean CSV with your chosen delimiter. Download the CSV file instantly.
Yes! Nested objects are automatically flattened using dot notation (parent.child.key). Deep nesting is supported up to 10 levels. Arrays inside objects can be expanded into separate rows or kept as comma-separated strings.
Absolutely. Choose comma (default), tab (TSV), or semicolon delimiters. The tool auto-detects locale-appropriate settings and lets you customize the output format for Excel, Google Sheets, or any spreadsheet software.
Arrays of objects are expanded into multiple CSV rows with shared parent fields. Arrays of primitives become comma-separated values in a single cell. You can also choose to export each array element as a separate row for relational analysis.
Files up to what your browser RAM can handle are supported (typically 50-100MB). Large JSON files are parsed in chunks. All processing happens locally in your browser - your data never leaves your device.
Convert JSON data to CSV format online for free. Our JSON to CSV converter flattens nested objects, handles arrays, and creates clean spreadsheet-compatible files. Perfect for data analysts importing API responses into Excel, developers exporting NoSQL collections for reporting, and marketers analyzing JSON analytics data. Supports complex nested structures with automatic column generation.
Upload your JSON file or paste JSON data. The converter analyzes structure and creates column headers from object keys. Nested objects are flattened with dot notation (e.g., user.name). Arrays are expanded into separate rows or comma-separated values. Choose delimiter: comma, tab, or semicolon. Download as CSV file that opens directly in Excel, Google Sheets, or Numbers. All processing is local.
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| Feature | Keynou | Konklone | ConvertCSV |
|---|---|---|---|
| Price | Free | Free (limited) | Free/Premium |
| Nested Objects | Yes | No | Limited |
| Arrays Handling | Yes | No | No |
| Large Files | As much as your RAM can handle | 1MB | 5MB |
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Transform your JSON data into CSV format instantly
Array of Objects:
[{"name":"John","age":30}]Nested Objects (flattened):
[{"user":{"id":1,"name":"Jane"}}]