Excel to JSON Converter

Microsoft Excel stores data inside rows and columns across separate worksheets. Web applications and databases expect JSON structures (an array of key-value objects) to parse configurations. When converting Excel worksheets to JSON arrays, the first row is treated as key headers, and every subsequent row forms a JSON object mapped to those keys. If you need to export JSON database records back to visual Excel spreadsheets, use our JSON to Excel Converter. Here is a visual representation of how table rows map to objects:

# Excel Spreadsheet Table
| UserID | Username | Active |
| 101    | Avery    | TRUE   |
| 102    | Casey    | FALSE  |

// Converted JSON Array Output
[
  {
    "UserID": 101,
    "Username": "Avery",
    "Active": true
  },
  {
    "UserID": 102,
    "Username": "Casey",
    "Active": false
  }
]

Excel files can bundle multiple sheets (e.g. Sales, Employees, Inventory) in a single workbook. Our client-side parser reads the binary workbook and dynamically populates a sheet selector dropdown. This lets you toggle between sheets and convert them one-by-one. If you need to convert plain comma-separated variables without uploading files, try our CSV to JSON Converter.

Spreadsheets commonly contain database exports, payroll details, customer emails, and private transaction records. Using cloud converters that process files server-side exposes this confidential data to leaks or caching risks. Our browser-native parser runs entirely in browser memory. Your spreadsheets are never uploaded to any remote server. If you are formatting JSON files before sending them to APIs or servers, pretty print them using our JSON Formatter & Validator.