High-Speed, Multi-Platform
Spreadsheet Calculation Engine

osbxl is an Excel generation & high-speed calculation engine for Java / Python / Node.js / WebAssembly,
built to be embedded in your business systems.

Why osbxl

Four reasons developers choose osbxl

Overwhelming Speed

The C++ core engine processes hundreds of thousands of cells in milliseconds. Bulk calculations on large datasets run smoothly.

🌐

Multi-Platform

Java / Python / Node.js / WebAssembly support. The same calculation logic everywhere, from server-side to the browser.

📊

400+ Functions

Excel-compatible financial, statistical and string functions, ready to use out of the box.

🔧

Easy Integration

Simple APIs drop straight into existing systems. Start spreadsheet calculation with just a few lines of code.

Supported Platforms

Java
JDK 1.8+ / Linux, Windows, macOS (Apple Silicon)
🐍
Python
Python 3.8+ / Linux, Windows, macOS (Apple Silicon)
🟢
Node.js
Node 16+ / Linux, Windows, macOS (Apple Silicon)
🌍
WebAssembly
All major browsers

Get Started Now

Try osbxl with the free demo and see the speed for yourself.
Contact us for adoption consulting.