Json To Csv

Convert JSON arrays into CSV format with customizable delimiter and optional headers. Ideal for developers to transform structured data.

JSON Input

Delimiter

Include Headers

Result

Please check your inputs.

Paste or upload your JSON array into the input field. Ensure it's a valid array of objects (e.g., [{...}, {...}]). Choose your delimiter — comma (CSV) is default, but you can also select tab, semicolon, or pipe. Toggle 'Include headers' on to use object keys as the first row, or off for data only. Click 'Convert' — the tool instantly transforms your JSON into CSV format. Copy the result to your clipboard or download it as a .csv file.

📖 How to Use This Tool

Paste or upload your JSON array into the input field. Ensure it's a valid array of objects (e.g., [{...}, {...}]).

Choose your delimiter — comma (CSV) is default, but you can also select tab, semicolon, or pipe.

Toggle 'Include headers' on to use object keys as the first row, or off for data only.

Click 'Convert' — the tool instantly transforms your JSON into CSV format.

Copy the result to your clipboard or download it as a .csv file.

📝 What Is Json To Csv?

JSON to CSV is a developer tool that transforms structured JSON arrays into tabular CSV (Comma-Separated Values) format. JSON is great for data interchange but often needs to be flattened into a spreadsheet or database-friendly format. CSV, being universally supported by Excel, Google Sheets, and database import tools, makes your data accessible to non‑technical team members and legacy systems. This converter handles nested objects by flattening keys (e.g., 'address.city') and preserves data types, so you don’t lose important structure. Whether you're migrating data, building reports, or feeding APIs, converting JSON to CSV saves hours of manual reformatting and reduces errors.

🧮 Formula

The tool reads each JSON object in the array, extracts all unique keys across all objects (if headers are enabled), then writes one CSV row per object. Values are converted to strings, and any commas or quotes within a value are escaped according to RFC 4180 (e.g., a value containing a comma is wrapped in double quotes). Delimiter and header settings are applied as chosen. Essentially: CSV = flatten(JSON_array) + delimiter_separator + optional_header_row.

💡 Tips for Best Results

✨🔍 Validate your JSON first — paste it into a linter to catch trailing commas or missing brackets before converting.

✨📂 For large datasets (10,000+ rows), use the 'Download CSV' option instead of copying to avoid browser memory limits.

✨🛠️ If your JSON has nested objects, the tool flattens keys with dot notation — rename columns afterward if needed.

✨🗂️ Choose tab delimiter instead of comma if your data contains many commas (e.g., addresses) to avoid quoting issues.

❓ Frequently Asked Questions

Can I convert a JSON object that is not an array?

No, this tool expects a JSON array of objects. If you have a single object, wrap it in brackets: [ yourObject ], and it will produce one CSV row.

What happens to nested objects and arrays inside my JSON?

Nested objects are flattened using dot notation (e.g., 'user.name'). Nested arrays are converted to a comma-separated string inside a single cell. If you need each array element as a separate row, consider unpacking the data first.

Is my data sent to your server?

No — all conversion happens locally in your browser using JavaScript. Your data never leaves your machine, making this tool safe for sensitive information.