JEPSH

Next-Generation Universal Framework

Performance by Default • Simplified State Management • True Cross-Platform Consistency

The Problem

Framework Chaos

Developers juggle React, Flutter, SwiftUI, Compose. Different mental models. Inconsistent performance. Massive context switching.

Performance Afterthought

Current frameworks optimize later. Bundle sizes explode. 60 FPS is a dream. Users suffer on slower devices.

Platform Inconsistency

Write once, debug everywhere. Pixel differences. Motion curves vary. Accessibility breaks across platforms.

The Solution

JXL Language

↓

Jepsh Render Kernel

↓

Adaptive Shell

→

Web

Android

iOS

ONE LANGUAGE. THREE PLATFORMS. ZERO COMPROMISE.

Performance by Default

Benchmark Results

Bundle Size (Initial Load)

Jepsh: 45KB React: 300KB

Time to Interactive

Jepsh: 0.8s Others: 3.2s

Memory Usage

Jepsh: 12MB Flutter: 40MB

Tree-shaking of runtime - unused code eliminated at compile time
Layout pre-calculation - static parts computed ahead of time
Frame-budget scheduler - guaranteed 60 FPS via micro-task batching
Zero-copy memory - large assets mapped directly from disk/GPU
Off-main-thread rendering - Web Workers, Kotlin coroutines, Swift Concurrency

Write Once, Run Everywhere

Meet JXL - A strict subset of TypeScript/Kotlin/Swift that compiles to all three platforms.

            // Counter.jxl - Write once, runs on Web, Android, iOS
view Counter {
  signal count: Int = 0

  render {
    VStack {
      Text("Count: \(count)")
      Button("Increment") {
        onClick = { count += 1 }
      }
      Button("Reset") {
        onClick = { count = 0 }
      }
    }
  }
}
          

Signal → View → Reaction

One mental model. Reactive state drives UI. No Context, Provider, or Services—just atoms.

Adaptive Shells

OS-specific motion curves, haptics, accessibility, and navigation gestures. Native feel everywhere.

Design Tokens

Auto-maps to Material You (Android), Human Interface Guidelines (iOS), CSS Variables (Web).

Developer Experience

            # Get started in seconds
npm i -g jepsh
jepsh create myApp
jepsh dev --platform=all  # Web, Android, iOS simultaneously
jepsh build --target=prod
          

Hot-reload across entire stack - Web HMR, Android Studio live edit, iOS SwiftUI preview
Time-travel debugger across all platforms
State heat-map shows atom re-render triggers in real time
VS Code, Xcode, and Android Studio plugins
Migration tools from React, Flutter, React Native

Roadmap to Domination

Q4 2025 - Web MVP

WASM runtime, core JXL compiler, basic UI components, VS Code extension

Q2 2026 - Android & iOS

Adaptive shells, native bridge, CLI tooling, Android Studio + Xcode plugins

Q4 2026 - General Availability

Component marketplace, production-ready tooling, enterprise support

2027 - The Future

Server-driven UI, edge rendering, AI-powered optimization

Join the Revolution

JEPSH IS APACHE 2.0 LICENSED, COMMUNITY-DRIVEN, AND READY TO DISRUPT THE ENTIRE ECOSYSTEM.

Invest in Jepsh Become a Sponsor Join Alpha Program

github.com/jepsh/rfc • Apache 2.0 License • Community-Driven