Your broadcast.
Your infrastructure.
CastNexus is one control room for PC streaming, console capture, browser overlays, multi-destination restreaming, authorised VOD reruns and always-on music radio.
Your stream keys, recordings, music and destinations remain on your own CastNexus server.
Every destination.RTMP · RTMPS · SRT · HLS · WEBRTC
Built for the way you stream
Profiles behave like independent workspaces, each remembering its source, canvas, scenes, music, reruns and enabled destinations.
PC streaming
Publish from OBS, Streamlabs or another RTMP encoder using a CastNexus-generated profile key.
OBS · RTMP · PROFILE KEYSConsole capture
Route supported console Twitch broadcasts through the optional DNS and network interception helpers.
CONSOLE · DNS · CAPTUREMusic 24/7
Run a profile-isolated radio station with uploaded tracks, animated cover art and a live spectrum—without OBS.
RADIO · SPECTRUM · ALWAYS ONMulti-destination output
Fan one selected programme feed out to Twitch, YouTube, Kick or custom RTMP, RTMPS and SRT servers.
LANDSCAPE · VERTICAL · SOURCEOverlay Studio
Switch Starting Soon, BRB, Ending, music, text, HTML and browser overlays through one stable programme surface.
SCENES · SSE · COMPOSITORReruns and recordings
Replay authorised Twitch or YouTube content, upload local VODs, record MediaMTX streams and send recordings to YouTube.
VOD · RECORD · UPLOADIngest, compose and distribute
MediaMTX receives the source. CastNexus selects the active profile, optionally renders browser scenes through its compositor, republishes a stable playback path and starts a dedicated output for every enabled destination.
- Automatic source detection and reconnect grace
- GPU encoder probing with CPU fallback
- WebRTC, HLS, RTSP and SRT local playback
- Profile-isolated destination and media libraries
Docker, Desktop or CLI
The complete self-hosted stack with MediaMTX and optional console helpers. Add NVIDIA or VAAPI GPU access when available.
A native Electron control room for Windows and Linux, using the same dashboard and streaming engine.
A headless launcher for servers and terminal workflows, with the same profiles and browser-based Studio.
Open source by design
Inspect it, self-host it, contribute to it and understand exactly where your broadcast data goes. The hosted OAuth endpoint only handles secure provider connection; your CastNexus installation remains yours.