MultiViewer

About

MultiViewer is a desktop client for motorsport fans that lets you watch multiple streams at once, such as building your own pit-wall or keeping a favourite driver's onboard camera open. Its multi-view feature keeps the streams in sync, even after one has to buffer, and Setups remember your stream layout so it can be restored with one click. Driver onboards can display live telemetry overlays, and a speedometer overlay shows speed, throttle, brake, gear, RPM and DRS status.

The app also offers live timing and telemetry for both live sessions and replays, including mini sectors, speeds and lap times, along with race control messages, a track map showing marshal sector status, real-time AI transcriptions of driver radios, a race trace graph of time gains and losses, and a lap time series table. For streaming platforms that use DRM, it supports Widevine playback and prevents screenshotting, downloading and screen sharing. A text-based content catalogue avoids showing thumbnails that could spoil race results. MultiViewer requires a subscription and is an unofficial, non-commercial, fan-made application.