Document Converters

XLSX to JSON Converter

Convert Excel spreadsheet data to a JSON array of objects in your browser. The first row becomes the property keys, each subsequent row becomes a JSON object, ready for APIs or data processing.

File processed locally No sign-up required Instant download
Excel input JSON output Browser-only

Input

Excel file

Excel

Drop Excel file here

or click to browse · processes locally in your browser

Conversion options

Document processing runs entirely in your browser; files never leave your device

Input File Output Text Browser-only No upload by default

Features

  • First row → JSON object keys
  • Each row → a JSON object in an array
  • Multi-sheet support with sheet selector
  • Handles numbers, dates, and text cells
  • Download as .json file
  • Browser-only. No upload

How to use it

  1. Upload your .xlsx file.
  2. Select the sheet to convert.
  3. Click Convert.
  4. Download the JSON array.

Use cases

  • Converting spreadsheet data for REST API consumption
  • Turning Excel reports into JSON for JavaScript applications
  • Importing spreadsheet data into NoSQL databases
  • Exporting Excel tables for config file generation

Limitations

  • You can choose the worksheet, decide whether the first row is used as keys, and infer numbers or booleans for cleaner JSON.
  • Complex styling, embedded media, comments, tracked changes, and macros are not preserved in this phase.
  • Very large documents depend on browser memory and device performance.
See also

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Questions & answers

Frequently asked

What if a cell is empty?

Empty cells produce a null value for that key in the JSON object.

Does Excel to JSON upload my document?

Your file is processed in your browser and is not uploaded.

What does Excel to JSON create?

It creates JSON records from the selected worksheet. You can choose the worksheet, decide whether the first row is used as keys, and infer numbers or booleans for cleaner JSON.

Will Excel to JSON preserve every document detail?

Document formats can contain styles, embedded media, comments, fields, tracked changes, and metadata. This browser tool focuses on the core text or generated document described on the page.