JSON to Excel Converter

Convert raw JSON data or JSON files into formatted Microsoft Excel (.xlsx) spreadsheets or CSV tables. All parsing runs 100% locally in your browser for total security.

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Drag and drop your JSON file here, or click to browse

Supports .json files up to 10MB

About JSON to Excel Converter Tool

JSON (JavaScript Object Notation) is a lightweight format for data interchange widely used by APIs and configuration files. However, it is difficult to read or analyze directly without programming experience. This tool converts complex, nested JSON data into a clean, row-and-column table compatible with tools like Excel, Google Sheets, or Numbers.

Key Features:

  • Nested Object Flattening: Checking the "Flatten" option recursively parses objects inside objects, stitching them together with dot notation (e.g. profile.address.city) to ensure all data maps cleanly to columns.
  • Array Key Detection: If your JSON consists of metadata at the root and nested records in a lower level (like {"status": "ok", "items": [...]}), the tool automatically finds the target list of objects.
  • Interactive Live Grid: Review the mapped column headers, row counts, and sample cells inside the embedded spreadsheet preview before generating the workbook.
  • 100% Client-Side Privacy: None of your data is transmitted to servers. The converting algorithms run entirely within your local web browser using SheetJS WebAssembly libraries.

How to convert:

  1. Drag and drop your JSON file, or paste raw JSON text directly into the input editor.
  2. If the structure is invalid, check the error console to fix any missing commas or quotes.
  3. Tweak flattening parameters or pick which nested array to map as rows.
  4. Review the spreadsheet-style preview headers.
  5. Download as `.xlsx` for MS Excel or `.csv` for general databases.