Stream any Simulator, anywhere.
Your Simulator, live in any browser.
See it, touch it, test it.
iOS 26.2
3A1F8B2C
iPadOS 26.1
E7D04A9F
iOS 26.0
B9C2E61D
Prompt. Build. See it live.
You're coding with AI — but you can't see the Simulator. SimCast streams it to your browser the moment your app launches.
From build to browser in seconds
Live streaming
One simulator or ten — each window gets its own H.264 stream, broadcast over WebRTC the moment you hit Start.
Remote touch
Tap, swipe, and scroll right from the browser. Every gesture lands in the Simulator as a native event — no VNC, no lag.
Advanced features
Type with the keyboard, capture screenshots, record video, and fire push notifications — all without leaving the dashboard.
Your Simulator, accessible everywhere
Instant browser access
Anyone with a link can see and control your Simulator — no installs, no plugins, no screen sharing needed.
Real touch & gestures
Tap, swipe, scroll, and long-press — interact with the app like you're holding the device, powered by native accessibility APIs.
Full device control
Type text, press Home, Lock, or Side buttons, and open deep links — everything you'd do locally, from anywhere.
Multi-simulator
Stream multiple simulators at once — QA across devices in parallel from a single dashboard.
Window-level capture
Only the Simulator window is captured — no desktop, no distractions, no accidental screen shares.
Open source & self-hosted
MIT licensed. Runs on your infrastructure — no third-party accounts, no usage limits, no data leaving your network.
Part of the AI development stack
SimCast is designed to work alongside the tools AI agents already use to build and automate iOS apps.
XcodeBuildMCP
An MCP server that gives AI agents direct access to Xcode — build, install, launch, and test iOS apps in the Simulator without leaving the agent loop. Pair it with SimCast so your agent can build the app and watch it run.
AXe
SimCast depends on AXe to translate remote interactions into real Simulator events. Install it with Homebrew and SimCast picks it up automatically — taps, gestures, hardware buttons, and text input all flow through it.
Built on proven foundations
Apple frameworks for capture and encoding. LiveKit for real-time streaming. Supabase for auth and signaling.
ScreenCaptureKit
Captures individual Simulator windows with zero overhead. No desktop chrome, no other apps, no pixel wasted. Combined with VideoToolbox for hardware-accelerated H.264 encoding on Apple silicon.
Open source. Self-hostable. MIT licensed.
Run SimCast on your own infrastructure. Audit the code, customize it, contribute back. No vendor lock-in, no usage limits.
View on GitHub