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b3LAB – SyphonCAM

A focused macOS app. Turn any Syphon or NDI source into a system-wide virtual webcam — available in Zoom, Teams, Safari, FaceTime, OBS, TouchDesigner, and anything else that reads from a standard camera. No capture hardware, no screen-share loops.

Get Early Access → View Features ↓
Zoom · Teams · Safari · FaceTime OBS · TouchDesigner macOS · Apple Silicon + Intel Notarized · System Extension

// FEATURES

What b3LAB – SyphonCAM does

A single, focused macOS app. One job: take any Syphon or NDI source and make it show up as a standard camera device system-wide — with the quality and latency of a native pipeline, not a screen-capture hack.

SYPHON IN

Native macOS shared texture pipeline

Receive live Syphon frames from any macOS source — TouchDesigner, Resolume, LiveFX, custom Metal apps — with zero-copy IOSurface transport and minimal latency. No screen capture, no frame export.

  • Syphon source discovery with connection state feedback
  • Last-source persistence — auto-reconnect on relaunch
  • Live preview with optional vertical & horizontal flip
  • Works with Metal-based Syphon servers (modern apps)
  • Designed for macOS — Apple Silicon and Intel
NDI IN Powered by NDI®

Network-based live visual ingest

Receive NDI streams from any NDI-capable source on your network. Cross-machine setups, broadcast pipelines, multi-room production — all as a standard camera in any app that reads from one.

  • NDI source discovery and selection
  • Connection state + fallback behavior
  • Works alongside Syphon in the same session
  • Video only — consumer apps expect a camera stream
  • NDI® technology by Vizrt — ndi.video

NDI® is a registered trademark of Vizrt Group AS. Used under standard NDI SDK licensing (Basic SDK, royalty-free). See ndi.video

VIRTUAL WEBCAM

System-wide CMIO Camera Extension

Ships a signed and notarized macOS System Extension that registers a standard camera device named b3LAB-Webcam. Any app that reads from a camera picks it up — no app-specific integration needed.

  • Appears in Zoom, Teams, Safari, FaceTime, OBS, and more
  • Auto-start on app launch
  • Dummy fallback (.jpg or .mp4) when no source is connected
  • Output flip toggles, persistent across sessions
  • ON-AIR badge + red frame while streaming live

Works With

Conferencing & Browser

Zoom, Teams, Safari, FaceTime

Any modern video-calling or browser app that reads from a standard camera device. Selected as b3LAB-Webcam in the app's camera picker.

Creative & Streaming

OBS, TouchDesigner, CamTwist

Use b3LAB-Webcam as a video input for broadcast, realtime-graphics, and compositing workflows — without any capture hardware.

⚠ Requires a one-time System Extension approval in System Settings → Privacy & Security → Allow. Currently supported: macOS 14+, Apple Silicon and Intel. The extension is Apple-notarized and stapled; Gatekeeper validates offline.

// KNOWN LIMITS

What this is not.

Every b3LAB tool has a clear scope. Knowing the limits is part of the tool.

  • Tested on macOS 14 and 15 on Apple Silicon and Intel.
  • System Extension requires a one-time approval in System Settings → Privacy & Security → Allow.
  • Video only — NDI audio streams are not routed through the virtual camera.
  • One virtual camera output at a time (b3LAB-Webcam is a single instance).
  • Consumer apps must read from a standard camera device (CMIO). Apps using custom capture APIs may not detect it.
  • Source apps must be on the same machine for Syphon. NDI works over the local network.

// COMPATIBILITY

Tested with.

  • OS: macOS 14, 15 · Apple Silicon + Intel
  • Consumer apps: Zoom, Teams, Safari, FaceTime, OBS, TouchDesigner, CamTwist
  • Source: Syphon 5 · NDI 6
  • Signal: RGB, RGBA

// SHOP

Get b3LAB – SyphonCAM

All licenses include the app binary (notarized DMG), the signed System Extension, setup documentation, and email support within the defined scope. Purchases delivered via Gumroad.

Early Access

€29

€49

For early adopters and technically confident users

  • 1 seat · macOS
  • Syphon IN + NDI IN → Virtual Webcam OUT
  • 12 months of updates
  • Setup documentation
  • Email support (standard scope)

Early Access — product is functional and actively evolving. Known limits and supported environments are documented.

Buy Early Access →
Not sure? Review the compatibility notes and known limits before purchase. Refunds are considered for non-delivery and clearly documented failures in supported environments — not for unsupported setups or change of mind. See Legal for full policy.

// ABOUT

Built to skip the capture-card detour.

b3LAB is Benjamin Mauz — a creative technologist and developer based in Esslingen am Neckar, Germany. b3LAB – SyphonCAM started as a companion to SyphonOFX+ — same goal, inverted direction: instead of bringing live visuals into a post-production NLE, expose them as a standard camera device system-wide.

The app is intentionally narrow in scope. It does one job reliably: make your realtime visual pipeline available in every app that reads from a camera. No feature explosion. No universal compatibility promises. A focused, honest utility for people who know why they need it.

b3LAB builds tools at the intersection of realtime graphics, post-production, and creative infrastructure.

b3LAB

Benjamin Mauz

Esslingen am Neckar, DE

Stack Swift · SwiftUI · CMIO System Extension · Syphon · NDI · Metal · macOS
Built for Creative technologists, realtime artists, broadcasters, remote setups
Also from b3LAB SyphonOFX+ · AudioOSC+ · MultiEncoder

// CONTACT

Get in touch

For support, licensing questions, and studio inquiries:

[email protected]

Response scope follows the purchased support tier. For studio or custom work, email directly with a brief description of your pipeline and use case. For licensing questions, use the form.

Opens your email client via mailto. Or email directly.