JSON to CSV Converter
Convert JSON data to CSV format instantly. Supports nested objects, arrays, custom delimiters, and bulk data.
About JSON to CSV Converter
JSON to CSV converts an array of objects, or a single object, into a spreadsheet-ready table. Nested objects can be flattened into dot-notation columns such as address.city, the delimiter can be a comma, semicolon, tab or pipe, the header row is optional, and any value containing the delimiter or a quote is escaped with doubled quotes. Row and column counts are shown, and the result copies to the clipboard or downloads as data.csv. Conversion happens entirely in your browser.
Use Cases
How to use
Paste an array of objects, or a single object, into the JSON Input box, or click Load Sample to start from example data.
Choose the Delimiter for the output: comma, semicolon, Tab or pipe.
Tick Include Headers to write the column names as the first row, and Flatten Objects to turn nested keys into dotted columns such as address.city.
Watch the CSV Output box fill in as you type and check the rows and columns counters underneath; a red message names the parse error if the JSON is broken.
Click Copy to take the CSV to your clipboard, or Download to save it as data.csv.
Pro Tips
- Paste your content directly — the JSON To CSV detects common input patterns and applies sensible defaults automatically.
- Use keyboard shortcuts (Ctrl/Cmd+A to select all, Ctrl/Cmd+C to copy) to speed up your workflow inside the JSON To CSV.
- For very large inputs, break them into chunks — most browser tabs can handle megabytes of text, but parsing huge payloads may freeze the UI briefly.
- The JSON To CSV does not log or store your input. If you need history, copy important outputs to a local file or note app.
- Combine the JSON To CSV with other tools on this site (formatters, converters, encoders) to build complete data pipelines without leaving your browser.
Frequently Asked Questions
Yes, fully free with no signup, no API key, no watermarks, and no usage limits.
No. The JSON To CSV runs entirely client-side in your browser. Your input never touches our servers.
There is no hard limit, but expect slowdowns on inputs larger than a few megabytes, depending on your device's memory.
Yes. Outputs generated with the JSON To CSV are yours to use freely in any personal or commercial project.
Most of the logic runs in client-side JavaScript, so after the initial load you can often keep working without a network connection.
None. Because the JSON To CSV runs in your browser, you can process as many inputs as your hardware allows without API keys or throttling.