JSON to Excel Converter
Exports a JSON array to an Excel-compatible CSV file, with configurable delimiter (comma, semicolon, tab, or custom), optional column headers, quote-all mode, transpose/pivot layout, and automatic array-to-cell joining. A live table preview lets you verify the data before downloading. Conversion and preview run entirely in the browser — no spreadsheet software is required.
JSON
Separator
Data Format
Excel Data
| id | name | active | |
|---|---|---|---|
| 1 | John Doe | john@example.com | true |
| 2 | Jane Smith | jane@example.com | false |
| 3 | Bob Johnson | bob@example.com | true |
What is JSON to Excel Converter?
Excel is where business decisions get made — but REST APIs and databases speak JSON. When a stakeholder asks for the data in a spreadsheet, copying and pasting from a JSON viewer is not a workflow. This converter takes your JSON array and builds a properly structured .xlsx workbook in seconds: column headers from your keys, data types preserved so formulas work, and optional multi-sheet output for nested datasets. It runs entirely in your browser using SheetJS, which means there is no server processing your financial records or customer data — the file is generated locally and downloaded directly. Developers use it to turn API fixture data into Excel reports without writing a single line of Python or Node.js. Analysts use it to bridge the gap between backend data exports and the pivot tables and VLOOKUP formulas their dashboards depend on.
How to Use
- 1
Load Your JSON Data
Paste a JSON array or object into the editor, or drag-and-drop a .json file. The tool accepts both flat arrays and deeply nested structures.
- 2
Configure the Workbook
Set the worksheet name, toggle header row generation, enable auto-fit column widths, and choose whether to detect and preserve numeric and date types.
- 3
Build the Excel File
Click "Convert to Excel". SheetJS generates a fully compliant .xlsx workbook in your browser — column headers, data types, and formatting are all applied before download.
- 4
Open in Excel or Sheets
Click "Download .xlsx" to save the file. Open it directly in Microsoft Excel, LibreOffice Calc, or import it into Google Sheets via File → Import.
Common Use Cases
Business Reporting
Convert REST API responses or database query results into Excel workbooks to share with business stakeholders who work in Excel and cannot consume raw JSON.
Financial Data Export
Export transaction records, invoice arrays, or budget data from JSON APIs directly into .xlsx format for accounting teams, preserving numeric precision and data types.
HR & People Data
Transform employee records, payroll exports, or survey results stored as JSON into formatted Excel sheets for HR systems that require spreadsheet uploads.
Data Analysis Prep
Load API result sets into Excel before applying pivot tables, VLOOKUP, or charts. Converting to .xlsx preserves number types so formulas work correctly without extra formatting steps.
Conversion Examples
Employee Array → Excel Workbook
Each JSON object becomes a row; keys become column headers in Sheet1.
Input JSON
[
{"id": 1, "name": "Alice", "dept": "Engineering", "salary": 95000},
{"id": 2, "name": "Bob", "dept": "Marketing", "salary": 72000},
{"id": 3, "name": "Carol", "dept": "Design", "salary": 80000}
]Output CSV
Excel file: Sheet1 id | name | dept | salary ---+-------+-------------+------- 1 | Alice | Engineering | 95000 2 | Bob | Marketing | 72000 3 | Carol | Design | 80000
Nested JSON → Flattened Excel Columns
Nested objects are flattened to dot-notation column names in the spreadsheet.
Input JSON
[
{"id": 1, "user": {"name": "Alice", "email": "alice@example.com"}},
{"id": 2, "user": {"name": "Bob", "email": "bob@example.com"}}
]Output CSV
Excel file: Sheet1 id | user.name | user.email ---+-----------+------------------ 1 | Alice | alice@example.com 2 | Bob | bob@example.com