Rhino vs Bun

JavaScript in Java? It's like duct-taping a sports car to a tractor—clunky but surprisingly effective for embedding scripts meets the new runtime that makes node look slow. Here's our take.

Rhino

Nice Pick

JavaScript in Java? It's like duct-taping a sports car to a tractor—clunky but surprisingly effective for embedding scripts.

Pros

• Seamlessly embeds JavaScript into Java apps for dynamic scripting
• Open-source and actively maintained by Mozilla
• Supports server-side automation and testing without external dependencies

Cons

• Performance lags behind modern engines like V8 or GraalVM
• Limited ES6+ support makes it feel outdated for modern JavaScript

Bun

The new runtime that makes Node look slow. Fast until you need that one npm package it does not support.

Pros

Cons

The Verdict

These tools serve different purposes. Rhino is a languages while Bun is a ai assistants. We picked Rhino based on overall popularity, but your choice depends on what you're building.

The Bottom Line

Rhino wins

Based on overall popularity. Rhino is more widely used, but Bun excels in its own space.