Jetpath

A performance-first cross-runtime API framework without the boilerplate

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In this new v1.11.1 we ran a 217 (passing) tests for performance, reliability and security.

Why Engineers Choose Jetpath

Every framework promises to be fast and simple but they are not.

// This is a complete API endpoint in Jetpath
export const GET_users_$id: JetRoute = async function (ctx) {
  const { id } = ctx.params;
  const user = await db.users.findUnique({ where: { id } });
  return ctx.send(user);
};

Jetpath eliminates the cognitive overhead that slows down development in many ways, you only write functions that map directly to HTTP endpoints through a clean, predictable naming convention.

The tech stack you already trust, but faster:

• Write APIs in TypeScript/JavaScript across Node.js, Deno, or Bun
• ~25% less code than Express with stronger type safety
• Benchmarks show massive throughput compared to Elysia.js *(bunJS fastest Framework).

Core Design Principles

Jetpath is built with strong opinions on what matters to you:

1. Zero config by default
2. Runtime agnostic - True support for Node.js, Deno, and Bun, AWS Lambda and cloudflare workers.
3. Type safety
4. Predictable routing - Routes derived from function names *(GET_users_$id → GET /users/:id)
5. Built for production
6. Faster iteraction

Quick Start

# Create new project

npx jetpath new-project

# Navigate and start the dev server

cd new-project
npm install 
npm run dev

API Design That makes everything simple and concise

import { type JetRoute, Jetpath, use } from "jetpath";

const app = new Jetpath();
app.listen(3000);

// GET /products
export const GET_products: JetRoute = async (ctx) => {
  const products = await db.products.findMany();
  ctx.send({ products });
};

// POST /products with validation
export const POST_products: JetRoute = async (ctx) => {
  const data = await ctx.parse();
  const product = await db.products.create({ data });
  ctx.send({ product }, 201);
};

// Add validation and docs in one step
use(POST_products)
  .title("Create a new product")
  .body((t) => ({
    name: t.string().required().min(3),
    price: t.number().required().min(0),
    description: t.string()
  }));

// Maps to ws://your-host/live instantly
export const GET_live: JetRoute = (ctx) => {
  ctx.upgrade();
  const conn = ctx.connection!;
  conn.addEventListener("open", (socket) => { /* ... */ });
  conn.addEventListener("message", (socket, event) => { /* ... */ });
};

Real Performance

It's not just a claim how fast - measure it. In the benchmark suite, Jetpath consistently perform close to raw Bunjs performance and matches elysia.js on common API workloads:

Framework	Requests/sec	Latency (avg)
Bun	~40,890	12.2ms
Elysia	~33,383	13.2ms
Jetpath	~32,339	13.7ms

12-core CPU, 32gb Ram, 1000 concurrent connections and 1,000,000 requests, simple JSON response

Bunjs being amongst the fastest http runtime.

Installation

For existing projects:

npm install jetpath --save

Community & Support

• Documentation - In-depth guides and API reference
• Discord Community - Get help from the team and other users
• GitHub Issues - Report bugs or request features

License

Apache 2.0 - Open source and built for the community.

Contributing

We welcome contributions! See our contributing guide for details on how to get involved.

By contributing, you agree to license your code under the Apache 2.0 license and confirm that all contributions are your original work.

Support or Sponsor the Project

If Jetpath helps you or your team ship faster and more understandable codebase, consider supporting its development through GitHub Sponsors.