AbsoluteJS

Full-stack, type-safe, batteries-included platform that lets you server-side render any modern front-end.

BASH

bun create absolutejs my-app

What is AbsoluteJS?

AbsoluteJS is a full-stack meta framework that unifies server-side rendering across multiple frontend technologies. Built on Bun and Elysia, it provides a single build process that handles bundling, hydration, and HTML streaming regardless of which UI framework you choose.

Your AbsoluteJS server is an Elysia server with superpowers. You get all the benefits of Elysia's type-safe routing, plugins, and middleware system while AbsoluteJS handles the complexity of multi-framework SSR.

Key Features

Universal SSR

Render React, Svelte, Vue, HTML, and HTMX from a single server with consistent patterns.

Single Build

One build() function generates a manifest mapping all client and server assets per route.

End-to-End Type Safety

Consistent typing from database through server logic to client code with TypeScript.

Zero-Config Design

Explicit function arguments with sensible defaults instead of fragmented configuration files.

Framework Support

One Framework, Any Frontend

Single Build

One build() for all frameworks

Unified Handlers

Same pattern everywhere

Type-Safe Props

End-to-end TypeScript

React

Full SSR with streaming and hydration

Svelte

Component SSR with client-side hydration

Vue

SSR with props injection and hydration

HTML

HTML pages with optional JavaScript

HTMX

HTMX-powered interactive templates

Angular

Coming soon

Quick Example

Here's a minimal AbsoluteJS server with React:

1import { build, handleReactPageRequest, asset } from '@absolutejs/absolute';
2import { Elysia } from 'elysia';
3import { Home } from '../frontend/pages/Home';
4
5const manifest = await build({
6  reactDirectory: './src/frontend'
7});
8
9new Elysia()
10  .get('/', () =>
11    handleReactPageRequest(Home, asset(manifest, 'HomeIndex'))
12  )
13  .listen(3000);

Next Steps

Installation — Set up AbsoluteJS in your project
Quickstart — Build your first AbsoluteJS application
Core Concepts — Learn about SSR, the build system, and routing