MultiViewer

MultiViewer is a desktop client designed for watching motorsport broadcasts from platforms such as F1 TV, IndyCar Live, and more. It allows users to view multiple synchronized streams simultaneously, access driver onboards with telemetry overlays, and view real-time AI transcriptions of driver radio communications. The application is a fan-made, non-commercial tool aimed at motorsport enthusiasts who want to build custom pit-wall layouts and analyze race data.

• Watch multiple streams at once while keeping them in sync
• Driver onboards with telemetry overlays including position and speed
• Speedometer overlay showing throttle, brake, gear position, RPM, and DRS status
• DRM-compatible player supporting Widevine playback
• Live timing and telemetry syncing for live broadcasts and replays
• One-click multi-view setups that remember stream positions and layouts
• Text-based content catalogue designed to prevent spoilers
• Race control messages with colour-coding and icons

Pros

• Provides synchronized multi-stream viewing for building custom pit-wall layouts
• Integrates live telemetry and speedometer overlays directly onto driver onboard streams
• Offers real-time AI transcriptions to let users read driver radio communications
• Includes a spoiler-free text-based content catalogue for navigating races
• Maintains layout configurations through reusable multi-view setups

Cons

• Requires a separate paid subscription to services like F1 TV to watch content
• Is an unofficial, fan-made application not associated with Formula 1 companies
• Maintains strict DRM compliance which prevents screenshotting, downloading, and screen sharing
• Does not help circumvent any content protection or limitations enforced by streaming providers

MultiViewer fits motorsport fans and viewers who use platforms like F1 TV, IndyCar Live, NASCAR, and WEC and want advanced viewing features like multi-stream layouts and telemetry overlays. It is a poor fit for users who do not have a separate paid subscription to the underlying streaming services, or for those looking for an official app endorsed by Formula 1.

The listing states the product is free, and the website mentions the option to support ongoing development through donations.

Unlike standard web browser viewing, MultiViewer functions as a dedicated desktop client that synchronizes multiple simultaneous video streams and overlays telemetry, live timing, and AI-driven radio transcriptions directly onto the footage. It incorporates features like a spoiler-free text-based catalogue and custom multi-view layout memory that standard broadcast interfaces typically do not combine into a single application.

F1 TV, IndyCar Live, NASCAR, WEC, Widevine DRM playback, Discord, Bluesky, Twitter, TikTok, Instagram, and GitHub.