Convert JSON array to CSV spreadsheet format
Built & maintained by Pappu Venkata Subbi Reddy, founder of Clacify · Updated July 2026
JSON to CSV converts JSON data into a CSV file you can open in Excel or Google Sheets, right in your browser. Paste a JSON array of objects (or upload a file) and the tool flattens it into rows and columns, handling nested fields, and lets you download the CSV. Developers and analysts use it constantly to turn API responses, exports, and config data into spreadsheets. Because conversion is local, JSON containing keys, tokens, or customer data is never sent to a server.
The JSON is parsed in the browser with the native JSON engine. The tool collects the union of keys across all objects to build the column headers, flattens nested objects/arrays into dot-notation columns, and writes each object as a row — escaping commas, quotes, and newlines per the CSV standard. The result is offered as a downloadable .csv file. All parsing and conversion happen locally, so your data never touches a server.
JSON is how APIs and apps exchange data, but it's awkward to read in bulk. CSV opens straight into Excel or Google Sheets, where you can sort, filter, pivot and chart. So the common workflow is: pull JSON from an API or export, convert it to CSV here, and hand it to anyone who lives in spreadsheets — analysts, finance teams, or your own quick sanity-check.
Real JSON is rarely flat. When an object contains another object, this tool flattens it into dot-notation columns — so { "user": { "name": "A" } } becomes a column headed "user.name". Arrays are handled by expanding their contents into columns too. The result is that deeply nested API responses still land as a clean, single-header table you can open in any spreadsheet, instead of a wall of braces.
Datasets you convert are often sensitive — customer records, exports, internal reports. This converter parses and transforms everything in your browser, so nothing is uploaded or logged. You can safely convert confidential JSON without it ever leaving your machine, which is exactly what you want before dropping data into a shared spreadsheet.
Paste your JSON array (an array of objects like [{"name":"Alice","age":30}]) into Clacify's JSON to CSV converter. The tool generates a CSV with the object keys as headers and each object as a row. Download the .csv file or copy the output to paste into Excel.
Yes. After converting JSON to CSV using Clacify, download the .csv file and open it directly in Microsoft Excel or Google Sheets. Excel recognises .csv files natively — just double-click to open, and it will automatically parse the columns.