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Convert JSON data to flat CSV format.
JSON to CSV is a free browser-based tool that helps you convert json data to flat csv format. It is part of ToolsMonk's ms office tools collection, so you can finish the job without downloading software, creating an account, or jumping between multiple websites.
This tool is especially useful for workflows such as exporting json data into csv for a spreadsheet, turning api/app json into excel-ready data, and flattening structured data for reporting. Because it runs directly in your browser, you can use it on desktop, tablet, or mobile while keeping the process fast and easy for one-off tasks as well as repeat work.
JSON to CSV is designed for people who want a practical, privacy-friendly workflow with instant results inside the larger ToolsMonk library.
Paste a JSON array of objects
The tool builds a header row from all keys and one row per object
Values with commas/quotes/newlines are properly escaped
Download the CSV
Converts a JSON array of objects into spreadsheet-ready CSV
Headers built from the union of all keys
Proper escaping of commas, quotes, and newlines
Processes your data in the browser — no upload
Download the CSV for Excel or import
Free, with no signup
Exporting JSON data into CSV for a spreadsheet
Turning API/app JSON into Excel-ready data
Flattening structured data for reporting
Sharing JSON data with spreadsheet users
JSON to CSV is a powerful free online tool available on ToolsMonk that helps you convert json data to flat csv format. Whether you're a professional, student, or casual user, our json to csv provides instant, accurate results right in your browser without requiring any software installation or account creation.
As part of our MS Office Tools collection, this tool is designed with simplicity and power in mind. All processing happens client-side, ensuring your data remains completely private and secure. The tool works seamlessly across all modern browsers on desktop, tablet, and mobile devices.
JSON to CSV converts a JSON array of objects into clean, spreadsheet-ready CSV — the bridge for getting structured data out of code and into Excel, Google Sheets, or a database import.
It builds the header row from the union of all keys, so even when records have slightly different fields nothing is dropped — missing values simply become empty cells, handling irregular data losslessly. Each object becomes a row, each key a column.
Correct escaping makes it reliable: values containing commas, quotes, or newlines are quoted and internal quotes doubled per the CSV standard, so the output opens cleanly in spreadsheet apps without columns shifting. Because CSV is flat, nested objects and arrays are serialised as JSON text in their cell — flatten first if you need them split out.
It runs in your browser, keeping your data private, and is the same conversion offered in the developer toolset — use whichever you reach. For the reverse, CSV to JSON converts back. Pair both with the wider ToolsMonk data and MS Office tools.
Provide an array of objects — that's what maps cleanly to rows and columns
Irregular objects are fine: all keys become columns and missing values become empty cells
Flatten deeply nested JSON first if you want each nested field in its own column
Common questions about this tool, its workflow, and what to expect before you use it.
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