JinatraWeb apps without the framework ceremony.

A tiny Fetch-native web framework with simple routing, request helpers, and built-in JSX SSR.

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Fetch-native

Run the same app on Bun, Node, Cloudflare Workers, or any Fetch-compatible runtime.

✦

Server-render escaped JSX with no React, template engine, or hydration step.

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Routing, middleware, sessions, static files, and responses in a compact API.

Jinatra keeps the happy path close to the metal. Return a string, object, JSX tree, or native Response and Jinatra does the rest.

No adapters to memorize. No application ceremony. Just a small router that feels good to use.

import { app } from 'jinatra'

import { serve } from 'jinatra/bun'

get('/hello/:name', () => 'Hello ' + params.name)

serve(app, { port: 3000 })

import { app } from 'jinatra'
import { serve } from 'jinatra/bun'

get('/hello/:name', () => 'Hello ' + params.name)

serve(app, { port: 3000 })