Version 1.6.2—WebSocket Support

Backend Framework
for the Web

Ultra-fast async MVC for Bun. 250,000+ req/sec performance.

Terminal

What is CanxJS?

Everything you need to build

Production-ready features out of the box. Built for performance, designed for developer happiness.

Ultra-Fast Routing

Radix Tree algorithm with O(k) route matching. Handle 250,000+ requests per second with JIT caching.

Async-First Design

Everything async by default. Clean, modern code without callback hell.

HotWire Protocol

Real-time streaming without WebSocket setup. Broadcast updates instantly to all clients.

Auto-Cache Layer

Intelligent automatic caching with pattern analysis for optimal performance.

Zero-Config ORM

MySQL and PostgreSQL support with elegant query builder syntax.

Native JSX Views

Server-rendered views with JSX. No external templating needed.

WebSocket Support

Native WebSocket integration for real-time bidirectional communication.

Built-in Security

CSRF protection, rate limiting, input validation out of the box.

Edge Runtime

Deploy to edge locations worldwide for ultra-low latency.

Built on Foundation of

Fast, Production-Grade Tooling

🥟

Bun

TypeScript

MySQL

PostgreSQL

Redis

250,000+

Requests per second

15x faster than Express

<30MB

Memory usage

75% less than Laravel

<50ms

Startup time

40x faster than Laravel

Why CanxJS?

Benchmarks that speak for themselves

We did the math. CanxJS outperforms the competition in speed, efficiency, and developer experience.

Feature	CanxJS	Express.js	Laravel	NestJS
Requests / Second	250,000+	~15,000	~2,000	~12,000
Startup Time	< 50ms	~200ms	~500ms	~1000ms
Type Safety	Included
Native WebSocket	Included
HotWire Protocol	Included
Bundle Size	< 30MB	Variable	> 100MB	> 50MB

Get Started in Seconds

Ship faster with less code

CanxJS lets you build production-ready APIs in minutes. With zero configuration, automatic type safety, and batteries-included features.

Zero Configuration

Works out of the box with sensible defaults

Type-Safe by Default

Full TypeScript support with inference

Production Ready

Deploy anywhere with confidence

app.ts

1import { createApp, logger, cors } from "canxjs";
2
3const app = createApp({ port: 3000 });
4
5// Middleware
6app.use(logger());
7app.use(cors());
8
9// Routes
10app.get("/", (req, res) => {
11  res.json({ message: "Hello CanxJS!" });
12});
13
14app.listen();

The framework of choice when it matters

From startups to enterprises, developers choose CanxJS for mission-critical applications.

REST API

Full-featured REST API boilerplate

APIAuthCRUD

Real-time Chat

WebSocket-powered chat application

WebSocketHotWire

E-commerce Backend

Complete e-commerce API

PaymentsOrders

SaaS Starter

Multi-tenant SaaS backend

AuthBilling

View all showcases

FAQ

Frequently Asked Questions

Everything you need to know about CanxJS. Can't find the answer? Check our docs.

What is CanxJS?

CanxJS is an ultra-fast, async-first MVC backend framework built specifically for Bun. It combines React-like developer experience with blazing performance, achieving 250,000+ requests per second.

How does CanxJS compare to Express or Fastify?

CanxJS is built for Bun runtime, making it 15x faster than Express and 3x faster than Fastify. It also includes features like ORM, authentication, and real-time support out of the box.

Do I need to know TypeScript to use CanxJS?

While CanxJS is TypeScript-first for the best developer experience, you can also use JavaScript. TypeScript is recommended for full type safety and better IDE support.

Can I use CanxJS with existing databases?

Yes! CanxJS supports MySQL and PostgreSQL with its built-in ORM. You can connect to existing databases and use the query builder or write raw SQL queries.

Is CanxJS production-ready?

Absolutely. CanxJS includes production essentials like error handling, logging, security middleware, rate limiting, and deployment guides for Docker, Kubernetes, and cloud platforms.

How do I get support for CanxJS?

Join our GitHub discussions, check the documentation, or open issues on GitHub. The community and core team actively help developers.

Ready to get started?

Create your first CanxJS app in seconds with our CLI. Start building your next great project today.

Terminal

Feature

CanxJS

Express.js

Laravel

NestJS

Requests / Second

250,000+

~15,000

~2,000

~12,000

Startup Time

< 50ms

~200ms

~500ms

~1000ms

Type Safety

Included

Native WebSocket

Included

HotWire Protocol

Included

Bundle Size

< 30MB

Variable

> 100MB

> 50MB

Ship faster with less code

CanxJS lets you build production-ready APIs in minutes. With zero configuration, automatic type safety, and batteries-included features.

Zero Configuration

Works out of the box with sensible defaults

Type-Safe by Default

Full TypeScript support with inference

Production Ready

Deploy anywhere with confidence

1import { createApp, logger, cors } from "canxjs";

3const app = createApp({ port: 3000 });

5// Middleware

6app.use(logger());

7app.use(cors());

9// Routes

10app.get("/", (req, res) => {

11 res.json({ message: "Hello CanxJS!" });

12});

14app.listen();

Backend Frameworkfor the Web

Everything you need to build

Ultra-Fast Routing

Async-First Design

HotWire Protocol

Auto-Cache Layer

Zero-Config ORM

Native JSX Views

WebSocket Support

Built-in Security

Edge Runtime

Fast, Production-Grade Tooling

Benchmarks that speak for themselves

Ship faster with less code

The framework of choice when it matters

REST API

Real-time Chat

E-commerce Backend

SaaS Starter

Frequently Asked Questions

Ready to get started?

Backend Frameworkfor the Web

Everything you need to build

Ultra-Fast Routing

Async-First Design

HotWire Protocol

Auto-Cache Layer

Zero-Config ORM

Native JSX Views

WebSocket Support

Built-in Security

Edge Runtime

Fast, Production-Grade Tooling

Benchmarks that speak for themselves

Ship faster with less code

The framework of choice when it matters

REST API

Real-time Chat

E-commerce Backend

SaaS Starter

Frequently Asked Questions

Ready to get started?

Backend Framework
for the Web

Backend Framework
for the Web