JSON to Excel Converter

Data Converters

Turn JSON arrays into real .xlsx spreadsheets in seconds. Auto-sized columns, a live spreadsheet preview, plus one-click Excel and PDF table export — 100% local and free.

100% Client-Side — Your data never leaves your browser.
Sheet name
Real .xlsx workbook with auto-fitted columns — or export the same table as a paginated PDF.
JSON Input
Spreadsheet Preview

Paste a JSON array of records (or click "Load Sample") to build the spreadsheet.

JSON to CSV Converter

Convert JSON arrays or objects to CSV instantly. Nested objects are flattened into dot notation, arrays kept as clean JSON cells, with live preview and one-click .csv download.

Data Converters

JSON to YAML Converter

Convert JSON to clean, readable YAML instantly. Choose 2 or 4 space indentation, validate JSON in real time, then copy or download — nothing ever leaves your browser.

Data Converters

JSON to C# Class Generator

Generate strongly-typed C# classes from JSON instantly. Nested objects, List<T>, DateTime, nullable types, JsonPropertyName attributes and PascalCase options — copy ready-to-use code.

Code Generators

JSON to Pydantic Model Generator

Generate Python Pydantic v2 BaseModel classes from JSON. Nested models, Optional fields, list[...] and dict[...] hints, aliases via Field — copy-paste ready Python code.

Code Generators

How to Use

Three steps from raw data to finished output — no account required.

  1. 1

    Paste your JSON array (or upload a .json file) — nested fields are flattened into columns.

  2. 2

    Review the live spreadsheet preview to confirm headers, types and values look right.

  3. 3

    Click Download .xlsx for a real Excel workbook, or Download .pdf to export the table as PDF.

Frequently Asked Questions

Everything you need to know about the json to excel converter.

Yes. The workbook is built with SheetJS in your browser and downloads as a genuine .xlsx file — not CSV renamed to Excel — that opens natively in Microsoft Excel, Google Sheets, LibreOffice Calc and Numbers.

Objects are flattened into dot-notation columns such as category.name, while arrays and mixed values are stored as compact JSON text in their cell. Each JSON record becomes one spreadsheet row with auto-fitted column widths.

Yes. The Download .pdf button renders your rows as a paginated table using jsPDF and AutoTable, with repeated table headers on every page — handy for reports, invoices and data shares with non-technical stakeholders.

There is no fixed limit — conversion runs on your machine, so the only constraint is your device memory. Hundreds of thousands of rows export comfortably, and the preview shows the first rows so the UI stays fast.