Convert JSON to Excel for Free

Use a simple web interface to turn JSON into .xlsx or .csv in a few clicks—core conversion runs in your browser. There is a 10MB per-request limit so the page stays fast and reliable (not unlimited).

Open the converter

What is JSON?

JSON (JavaScript Object Notation) is a lightweight, text-based way to represent structured data: objects (key–value pairs), arrays, strings, numbers, booleans, andnull. It is widely used in web APIs, configuration, and data exchange because both people and programs can read it easily.

Valid JSON requires double quotes around keys and string values. Example:

{
  "name": "john",
  "surname": "doe"
}

Where is JSON used?

  • REST and GraphQL APIs returning records to clients
  • Configuration files for apps and build tools
  • Logs and event streams (sometimes line-delimited JSON)
  • Mobile and web apps passing state between services

What is Excel?

Microsoft Excel is a spreadsheet program for organizing data in rows and columns, with formulas, charts, filters, and pivot tables. The file format this site produces is .xlsx (Office Open XML)—the standard since Excel 2007—not the older binary .xls format.

XLSX files are ZIP packages of XML parts. You can open them in Excel on Windows or macOS, Google Sheets, LibreOffice Calc, and many other tools. A workbook can contain multiple sheets; our converter outputs one sheet (Sheet1) with your flattened table.

Where are Excel files used?

  • Business reporting, budgeting, and operational metrics
  • Finance and accounting exports
  • Research and academic datasets shared with non-programmers
  • General collaboration when stakeholders expect a spreadsheet, not raw JSON

Why convert JSON to Excel?

  • API and debugging: Turn responses from Postman, curl, or browser devtools into a sortable grid.
  • Business reporting: Share exports with people who live in spreadsheets, not JSON.
  • Cleaning and QA: Use filters and conditional formatting in Excel or Sheets after export—we focus on a faithful table, not a second “metadata” sheet or built-in preview UI.

How does this JSON-to-Excel tool work?

The converter on our site runs in your browser for the main flow: you paste JSON, upload a file, or load text from a public URL (the URL is fetched by our server once so your browser is not blocked by CORS). Your data is flattened into rows and columns and written to an .xlsx file using a standard JavaScript spreadsheet library—no separate desktop install for the core feature.

  1. Choose paste, upload (one file, up to 10MB), or From URL.
  2. Click Download Excel (.xlsx) or Download CSV.
  3. Save the file when your browser prompts—then open it in Excel, Sheets, or Calc.

We do not claim unlimited file sizes or batch ZIP of hundreds of files—see the FAQ.

Quick FAQ

What is the file size limit?
10MB per paste or upload on the converter, and the same order of magnitude for URL responses—large enough for many API payloads, but not unlimited.
Is it safe? Is data stored?
Core conversion is designed to run locally in your browser. URL fetch is explained in our FAQ and Privacy Policy. Avoid pasting secrets on shared machines.
Can I convert multiple JSON files at once?
One file or one pasted payload per run. Run again for another file, or merge sources offline if needed.
Where can I use the converted file?
Anywhere that opens .xlsx or .csv—Excel, Google Sheets, LibreOffice, BI tools, or downstream scripts.

More: JSON to XLSX landing · How-to guide