Nodejs:
- Widely used with huge adoption
- Event-driven
- V8 Javascript Engine
- High performance for I/O tasks
- Requires additional tooling for bundling and transpiling
- Primarily Javascript
Bun:
- Not so widely used, newer, and improved performance
- All-in-one toolchain
- Zig-based
- Javascript Core Engine
- Faster Startup time
- Growing ecosystem
- Primarily Javascript with some Zig
