Convert JSON to XLSX and Excel Online
Transform JSON arrays and objects into Excel workbooks directly in your browser, with automatic columns and no upload of API or business data.
Conversion runs locally. Your JSON files never leave this device.
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Choose JSON files to create XLSX output.
How to import JSON to XLSX
Create XLSX files from JSON input in three steps, with clear limits and downloadable output.
Choose JSON files
Add one or more JSON files to the conversion queue.
Convert to XLSX
Review the available settings, then start conversion and wait for each file to finish.
Download XLSX
Download output files separately or save multiple completed files together as a ZIP.
JSON to Excel converter for arrays and objects
Use the available controls to prepare XLSX output for your target application.
| Control | Setting | Effect |
|---|---|---|
| Batch queue | Up to 10 files | Processes several source files without repeating the upload workflow |
| File handling | Local browser | Source files never leave this device |
| Array mapping | Union of object keys | Creates columns for every key found across records |
| Nested data | JSON text in cells | Prevents silent loss of objects and arrays |
JSON data vs XLSX spreadsheets
JSON represents nested application data; XLSX organizes values into worksheets, rows and columns.
| Characteristic | Source | Output |
|---|---|---|
| Structure | Nested objects and arrays | Tabular cells |
| Schema | Flexible | Rows and columns |
| Nested values | Native | Serialized as JSON text |
| Common use | APIs and applications | Excel analysis and sharing |
| Data types | JSON primitives | Spreadsheet cell values |
Convert JSON arrays to Excel rows and columns
Arrays of objects become a header row plus records; other JSON shapes use a predictable fallback layout.
Object arrays become tables
Keys form headers and each object becomes one row.
Missing properties stay blank
Rows without a key receive an empty cell.
Nested structures remain visible
Objects and arrays inside cells are serialized as JSON text.
Column widths are adjusted
Widths are estimated from content and capped for usability.
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JSON to XLSX converter FAQ
How do I import JSON to XLSX?
Choose JSON files above, start the conversion, then download each XLSX result or save multiple outputs as a ZIP.
Is this JSON to XLSX converter free?
Yes. You can use the displayed file-size and batch limits without payment or account registration.
Are my JSON files uploaded?
No. JSON parsing and XLSX encoding run locally in your browser.
Can I batch convert JSON files to XLSX?
Yes. Add up to 10 JSON files, convert the queue and download completed XLSX files individually or as a ZIP.
What JSON structure works best for XLSX?
An array of similarly shaped objects produces the cleanest table.
How are nested JSON objects handled?
Nested objects and arrays are stored as JSON strings inside cells.
What happens when objects have different keys?
The converter builds the union of all keys and leaves missing values blank.
Can I open the output in Microsoft Excel?
Yes. The generated file is a standard .xlsx workbook.
Does JSON to XLSX preserve numbers and booleans?
Top-level tabular primitive values are written as their corresponding spreadsheet cell types.
Can it convert a single JSON object?
Yes. A single object becomes a two-column Key and Value worksheet.
Convert JSON to XLSX now
Create downloadable XLSX output from your JSON files.
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