Bun vs Express.js
A detailed comparison to help you choose the right framework & development for your business needs.
Platform Overview
Both Bun and Express.js are popular framework & development solutions. Here's how they compare.
Bun
An all-in-one JavaScript runtime, bundler, transpiler, and package manager designed for speed and developer experience.
Express.js
A minimal and flexible Node.js web application framework that provides a robust set of features for web and API development.
Feature Comparison
Bun Features
- Ultra-fast JavaScript runtime
- Built-in bundler and transpiler
- Native TypeScript support
- npm-compatible package manager
- SQLite driver included
Express.js Features
- Minimal and unopinionated
- Middleware architecture
- Robust routing
- Template engine support
- Massive ecosystem of packages
Best For
Bun — Best For
- High-performance JavaScript servers
- Fast development toolchain
- Drop-in Node.js replacement
Express.js — Best For
- Node.js REST API backends
- Rapid API prototyping
- Middleware-driven web servers
Our Verdict
Both Bun and Express.js are excellent choices. Bun excels at high-performance javascript servers, while Express.js shines at node.js rest api backends. The best choice depends on your specific needs, budget, and technical requirements.
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Frequently Asked Questions
Which is better, Bun or Express.js?
Neither is universally better — it depends on your needs. Bun is best for high-performance javascript servers, while Express.js excels at node.js rest api backends. We can help you evaluate which fits your business.
Can I switch from Bun to Express.js?
Yes, migration is possible. The complexity depends on your current setup and data. Our team can plan and execute a smooth migration with minimal downtime.
Can I use Bun and Express.js together?
In many cases, yes. Bun and Express.js can complement each other depending on your architecture. We can advise on the best integration strategy.
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