Convert between CSV and JSON formats instantly
Convert CSV to JSON or JSON to CSV
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Choose delimiter, headers, formatting
Handle files up to 10MB
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Need to convert JSON to CSV or convert CSV to JSON? You're in the right place. Our free JSON to CSV converter and CSV to JSON converter handles both directions instantly—all processing happens in your browser for complete privacy.
CSV (Comma-Separated Values) is a flat, tabular format where data is organized in rows and columns. It's the universal format for spreadsheets, database exports, and bulk data transfers. Every value is treated as text (strings).
JSON (JavaScript Object Notation) is a hierarchical, structured format that supports nested objects, arrays, and multiple data types (strings, numbers, booleans, null). It's the industry standard for APIs and modern web applications.
| Feature | CSV | JSON |
|---|---|---|
| Structure | Flat (rows & columns) | Hierarchical (nested objects) |
| Data Types | Text only (strings) | Strings, numbers, booleans, arrays |
| Nested Data | ❌ Not supported | ✅ Full support |
| Best For | Spreadsheets, Excel, bulk exports | APIs, web apps, databases |
Use JSON to CSV when: You have API response data and need to analyze it in Excel, Google Sheets, or other spreadsheet tools. Perfect for creating reports, exporting user data, or preparing data for non-technical stakeholders.
Use CSV to JSON when: You have spreadsheet data that needs to be sent to an API, imported into a database, or used in a web application. Ideal for data migration and bulk imports.
Our JSON to CSV converter online tool parses your data and transforms it automatically. When you convert CSV to JSON, each row becomes a JSON object. When you convert JSON to CSV format, each object becomes a row:
The reverse works too—paste JSON and get perfectly formatted CSV with headers automatically generated from object keys.
Simply paste your JSON data in the input area, select "JSON → CSV" mode, and click Convert. Our JSON to CSV converter online processes everything in your browser—no uploads required.
For JSON to CSV Python conversion, use the built-in json and csv modules: json.load() to parse JSON, then csv.DictWriter() to write CSV. For quick one-off conversions, use this online tool instead.
Not directly—Excel files (.xlsx) are binary. First export to CSV from Excel (File → Save As → CSV), then use this tool to convert CSV to JSON.
When you convert JSON to CSV format, nested objects are flattened into columns with dot notation (e.g., user.address.city). Very deep nesting might not convert cleanly—CSV is inherently flat.
Yes! This JSON to CSV converter is 100% free with no limits. All conversion happens in your browser—your data never leaves your computer.
Yes! If your JSON is an array of objects with consistent keys, it converts perfectly to CSV rows and columns using our JSON to CSV tool.
Our CSV to JSON converter handles missing fields gracefully by filling them with empty values or null in the JSON output.
This JSON to CSV online tool handles files up to 10MB. For larger files, consider splitting them into chunks or using server-side processing tools.