MultiViewer

MultiViewer is a desktop client that connects to F1 TV and other motorsport streaming services, allowing users to watch live races and replays on macOS. It aggregates multiple video feeds, such as driver‑onboard cameras and pit‑wall angles, and keeps them synchronized even when individual streams buffer. The application also integrates live timing and telemetry data, displaying speed, throttle, brake, gear, RPM, DRS status and sector information directly over the video.

The client includes a speedometer overlay, race‑control message panel, track map with marshal sectors, and AI‑generated radio transcriptions, providing a comprehensive view of race dynamics without leaving the broadcast. Users can save custom multi‑view layouts as “Setups” that are restored automatically on subsequent sessions, and the player supports DRM‑protected streams via Widevine while preventing screen capture.

Targeted at motorsport enthusiasts who subscribe to F1 TV, IndyCar Live, NASCAR or WEC services, MultiViewer offers a unified interface for watching multiple streams, accessing detailed telemetry, and following race communications in real time. The software is stable, macOS‑only, and maintained through community contributions and optional donations.