JSON ↔ CSV
Convert JSON and CSV
Last updated:JSON to CSV (and back) conversion turns a JSON array of objects into a tabular CSV file, or parses CSV back into JSON. LlamaPDF infers column headers from the JSON keys, handles nested objects with dot-notation, and respects CSV quoting rules — all in your browser. Useful for importing API data into spreadsheets.
Your file stays on your device — never uploaded
How to convert JSON to CSV
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Upload your JSON file by dragging it into the box above, or paste your JSON data directly into the editor.
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Preview the parsed data and confirm the column mapping. The tool automatically detects the structure of your JSON array and maps keys to CSV columns.
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Click Convert and download your CSV file. The conversion runs entirely in your browser — your data stays on your device and is never sent to a server.
Why use our JSON-to-CSV converter?
JSON is the standard data format for APIs and web applications, but it is not easy to open in spreadsheet software or share with non-technical colleagues. Converting JSON to CSV makes your data accessible in Excel, Google Sheets, or any tabular tool — perfect for reporting, analysis, or importing into databases. Our converter handles nested objects and arrays intelligently, flattening them into a clean tabular structure.
Once you have your CSV, you can convert it to a full Excel workbook using our CSV to Excel converter. Need to go the other direction? The tool supports CSV-to-JSON conversion as well. If your data is already in a spreadsheet, try our Excel to CSV tool to extract it.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight, text-based data format used to store and exchange structured data. It organizes information using key-value pairs and arrays, making it both human-readable and easy for machines to parse. JSON is the dominant format for web APIs, configuration files, and data storage in modern applications. Despite its origins in JavaScript, it is language-independent and supported by virtually every programming language.