100% Browser-Based Processing

Convert JSON ↔ Excel
Fast. Private. Powerful.

Privacy-first conversion tool with advanced flattening and multi-sheet export. All processing happens in your browser.

Privacy First

All conversions happen in your browser. Your data never leaves your device.

Lightning Fast

Process files up to 50MB with web workers. Preview renders in under 3 seconds.

Multi-Sheet Export

Handle nested arrays with child sheets, foreign keys, and flexible join strategies.

Smart Flattening

Configurable flattening with dot notation, array expansion, and inline joins.

More Excel and JSON Converters

Explore more converters for Excel and JSON formats. Transform your data between multiple formats with our professional online conversion tools.

From office users to developers, our tool adapts to your workflow

Office Users

One-click conversion with preview

No technical knowledge required

Privacy-focused processing

Analysts

Advanced flattening rules

Multi-sheet array expansion

Type inference and validation

Developers

Multiple format support

Advanced data transformation

NDJSON detection & handling

Ready to Convert?

Start converting your files in seconds. No signup required.