In this article, I will explore the top web frameworks built using Bun.

What is Bun?

Bun is a fast JavaScript runtime that can run your JavaScript code faster than any other tool known to developers.

Bun also acts as a bundler like Webpack, a test runner like Jest or Karma, and a package manager like NPM or Yarn.

In addition, it’s almost fully compatible with existing Node .js APIs, but has its own set of highly optimized APIs that actually make it fun to build high -performance server side applications with JavaScript.

Web frameworks built using Bun

This article is a lifesaver if you are a newbie to Bun and seeking the primary point in developing your initial Bun application. It holds a detailed compilation of the top web frameworks built using Bun.

1. Elysia: A fast and friendly Bun web framework

Elysia is a web framework for Bun, a fast and lightweight JavaScript runtime. It is written in TypeScript and focuses on performance, simplicity, and flexibility.

Elysia is highly customizable and can be used to build a wide variety of web applications, from simple websites to complex web applications.

Features:

• Performance: Elysia is designed to be as fast as possible. It uses a number of techniques to improve performance, such as pre-compiling code and avoiding unnecessary allocations.
• Simplicity: Elysia is easy to use and learn. It has a simple and intuitive API that makes it easy to get started with.
• Flexibility: Elysia is highly customizable. It can be used to build a wide variety of web applications, from simple websites to complex web applications.

Elysia is a great choice for building web applications with Bun.

It is fast, simple, and flexible. If you are looking for a web framework that can help you build high-performance web applications, Elysia is a great option.

2. Vixeny

Vixeny is a functional web framework designed for modern web development. It champions functional purity, immutable structures, controlled side effects, performance, testability, and runtime agnosticism. Vixeny is still under development, but it is already being used by some developers.

Features:

• Functional: Vixeny is designed to be used with a functional programming style. This makes it easy to write code that is predictable and easy to test.
• Pure: Vixeny functions are pure, which means that they do not modify any state outside of their scope. This makes it easy to reason about your code and avoid bugs.
• Immutable: Vixeny encourages the use of immutable data structures. This makes your code more reliable and easier to reason about.
• Performant: Vixeny is designed to be performant. It uses a number of techniques to improve performance, such as pre-compiling code and avoiding unnecessary allocations.
• Testable: Vixeny is easy to test. It provides a number of features that make it easy to write and run tests.
• Runtime agnostic: Vixeny can be used with any JavaScript runtime. This makes it easy to deploy your Vixeny applications to a variety of platforms.

3. Stric

Stric is a Bun-first framework for building high performance and scalable web applications and APIs.

Stric is one of the fastest JS frameworks. 

Features:

• Performant: Optimize the handler by storing and composing @medley/router tree structure into a single handler.
• Scalable: Ensures high performance even under heavy workloads.
• Simple: Components are lightweight and simple to use.
• Extensible: Comes with a plugin system, dependencies injection and optional optimizations.

4. Hono

Hono is a lightweight, ultrafast web framework for the edges. It works on any JavaScript runtime, including Cloudflare Workers, Fastly Compute@Edge, Deno, Bun, Vercel, Lagon, AWS Lambda, Lambda@Edge, and Node.js.

Hono is designed to be fast and efficient. It has a small footprint and uses only the Web Standard API.

Features:

• Routing: Hono has a powerful routing system that makes it easy to create complex routing rules.
• Middleware: Hono supports middleware, which allows you to intercept and modify requests and responses.
• Context: Hono provides a context object that gives you access to information about the current request and response.
• Templating: Hono supports templating, which allows you to render HTML templates.
• Durable objects: Hono supports Cloudflare Durable Objects, which are a type of persistent storage that can be used to store state across requests.

Hono is a great choice for building web applications that need to be fast, efficient, and scalable. It is also a good choice for building edge applications, which are applications that run on the edge of the network, close to the user.

5. Grace

Grace is an API framework designed to simplify backend development and bring innovation and efficiency to the table. It is an innovative, type-safe and easy-to-use API framework.

Features:

• Type Safety: Grace is a type-safe framework, ensuring that the types of data in your code are correct
• Ease of Use: Grace was designed with developer experience in mind.
• Streamlined Development: Grace takes care of many routine tasks in backend development.
• Scalability: Grace can handle varying loads effectively, making it a suitable choice for building APIs that scale.

6. NBit

NBit is a zero-dependency, strongly-typed web framework for Bun, Node and Cloudflare Workers. It is designed to be simple, declarative, and type-safe. NBit makes it easy to build web services and REST APIs with a focus on performance and scalability.

NBit is built on top of the Bun runtime, which is a fast and lightweight JavaScript runtime. Bun is designed to be a drop-in replacement for Node.js, but it offers a number of advantages, such as faster startup times and lower memory usage.

NBit is also strongly-typed, which means that it uses TypeScript to automatically infer the types of your code. This makes your code more reliable and easier to maintain.

Features:

• Routing: NBit has a powerful routing system that makes it easy to create complex routing rules.
• Middleware: NBit supports middleware, which allows you to intercept and modify requests and responses.
• Validation: NBit includes a built-in validation system that makes it easy to validate user input.
• Serialization: NBit includes a built-in serialization system that makes it easy to serialize and deserialize data.
• Dependency injection: NBit supports dependency injection, which makes your code more modular and reusable.

NBit is a great choice for building web services and REST APIs with Bun, Node and Cloudflare Workers. It is simple, declarative, type-safe, and performant. If you are looking for a web framework that can help you build high-performance web applications, NBit is a great option.

7. GraphQL Yoga

GraphQL Yoga is a fast and easy-to-use GraphQL server for Bun. It is a fully-featured GraphQL server with a focus on ease-of-use, performance, and great developer experience.

GraphQL Yoga is built on top of the Bun runtime, which is a fast and lightweight JavaScript runtime. Bun is designed to be a drop-in replacement for Node.js, but it offers a number of advantages, such as faster startup times and lower memory usage.

GraphQL Yoga is also very easy to use. It has a simple and intuitive API that makes it easy to get started with GraphQL.

Features:

• Schema generation: GraphQL Yoga can automatically generate a GraphQL schema from your code. This makes it easy to get started with GraphQL and to keep your schema in sync with your code.
• Resolvers: GraphQL Yoga provides a simple and efficient way to implement resolvers. Resolvers are the functions that provide data to GraphQL clients.
• Caching: GraphQL Yoga supports caching, which can improve the performance of your GraphQL server.
• Error handling: GraphQL Yoga provides a comprehensive error handling system that makes it easy to handle errors in your GraphQL server.

Conclusion

Bun is a fast and lightweight JavaScript runtime that is gaining popularity among developers. It is designed to be a drop-in replacement for Node.js, but it offers a number of advantages, such as faster startup times and lower memory usage.

There are a number of open source web frameworks that are built using Bun, such as Hono, NBit, and GraphQL Yoga. These frameworks make it easy to build web services and REST APIs with Bun, with a focus on performance and scalability.

If you are looking for a fast and lightweight JavaScript runtime for building web applications, Bun is a great option. And if you are looking for a web framework that is built on top of Bun, there are a number of open source frameworks to choose from.