JSON to Excel Converter.
Convert a JSON array of objects into a real .xlsx workbook in
one click — with numbers as numbers, multi-sheet export, nested-object
flattening, and a live preview. All in your browser.
No signup · No uploads · No file-size cap
Preview
// Paste JSON and the spreadsheet preview appears here.
Convert JSON to Excel online — free and private
A JSON to Excel converter turns structured JSON — most often a JSON array of objects — into a spreadsheet you can open, sort, and chart in Excel, Google Sheets, or LibreOffice. Paste your JSON above, press Download .xlsx, and the tool flattens each record into a row and writes a genuine XLSX workbook. Because everything runs client-side, you can convert JSON to Excel online without uploading a single byte.
How to convert JSON to Excel in three steps
- Paste your JSON into the input, or click “Load sample” to see the format.
- Choose your options — how nested arrays expand, whether to flatten nested objects, and a header row.
- Download — preview the sheet, then save it as
data.xlsx(ordata.csv).
A real spreadsheet, with the right cell types
Many “JSON to Excel” tools secretly hand you a CSV renamed to
.xls, which Excel flags with a warning and which stores
every value as text. This tool writes a proper .xlsx
file where numbers are numeric cells and booleans are real values — so
totals, sorting, and formulas just work. Need plain text instead? A
one-click CSV download is right there too.
Multi-sheet export and nested data
When your JSON is an object whose values are arrays — say
{ "users": [...], "orders": [...] } — each key becomes
its own worksheet, so a single workbook can hold
several related tables. Nested objects flatten into readable
parent.child columns, and nested arrays follow the mode you
pick: expand to rows, join into one
cell, or keep as JSON. That is the control
single-shape converters leave out.
Why use this JSON to Excel tool?
Unlike converters that upload your file and cap large inputs around 10 MB, this one builds the workbook locally with no file-size limit and validates your JSON first, flagging the exact line and column of any error. Need the reverse? Use the Excel to JSON converter, or go via JSON to CSV and CSV to JSON. Learn more in our guide on how to convert JSON to Excel.
FAQ
JSON to Excel, answered.
How do I convert JSON to Excel online? +
Paste your JSON — usually an array of objects — into the converter above, choose your options, and press Download .xlsx. The tool flattens each object into a spreadsheet row, builds the header from your keys, previews the result, and saves a real .xlsx file. Everything runs in your browser, so nothing is uploaded.
Does it create a real .xlsx file or just a CSV? +
A genuine .xlsx workbook that opens in Microsoft Excel, Google Sheets, LibreOffice, and Numbers — with numbers stored as numeric cells and booleans as real values, not everything as text. You can also download a .csv from the same screen if you prefer.
Can I export multiple sheets? +
Yes. If your JSON is an object whose values are arrays — for example { "users": [...], "orders": [...] } — each key becomes its own worksheet in the workbook, named after the key. A plain array exports as a single sheet.
How are nested objects and arrays handled? +
Nested objects are flattened into dot-notation columns such as address.city. For nested arrays you choose: Expand to rows creates one row per item, Join combines them into a single cell, and Keep as JSON writes the raw array into the cell — so deeply nested JSON still produces a clean spreadsheet.
Is there a file size limit? +
No. The workbook is built entirely on your device, so the only limit is your browser's memory. Large JSON exports that tools like jsontoexcel.net reject at their 10 MB cap convert here without an upload or a paywall.
Is my data safe? +
Completely. This JSON to Excel converter is 100% client-side. Your data is converted locally and is never sent to, stored on, or seen by any server, making it safe for API responses, exports, and private records.