XLSX to JSON Converter

100% Client-Side Processing

Transform Excel Data to JSON

Convert your Excel files to JSON format with advanced customization options, drag-and-drop mapping, and real-time preview.

Advanced conversion with custom mapping

Drag & drop file upload

Real-time Excel preview

Custom key mapping with data types

Manual value insertion

Conversion Dashboard

Manage and download your conversions

View conversion history

Download JSON files

Storage management

Batch operations

Process large Excel files instantly with client-side conversion

Your data never leaves your browser - 100% client-side processing

Drag-and-drop reordering with custom data types and manual values