
What is Bun
Bun is a high-performance JavaScript runtime designed as a modern alternative to Node.js, integrating essential development tools such as a bundler, transpiler, test runner, and package manager into a single executable. It is built from scratch using Zig and JavaScriptCore to achieve faster startup times, reduced memory usage, and aims for full compatibility with the Node.js ecosystem, supporting JavaScript, TypeScript, and JSX out-of-the-box.
Key Features
Use Cases
- JavaScript developers seeking a faster runtime and toolchain to replace Node.js for application development
- Teams using TypeScript or modern frameworks who need integrated bundling, testing, and package management
- Open-source projects that benefit from a unified, high-performance toolkit for building and maintaining code
- Companies optimizing CI/CD pipelines to reduce build and test times for faster deployments
Why do startups need this tool?
Startups need Bun to accelerate development cycles through its integrated, high-performance toolchain, reducing time spent on building, testing, and deploying applications. Faster iterations and simplified setup help small teams move quickly and efficiently, optimizing resource usage and enabling rapid product evolution in competitive markets.




