Are there any content management systems that handle HD video delivery and offline access for fitness training libraries?

Yes — but with an important caveat: most general-purpose CMSs don’t natively solve both HD video delivery and offline access. For a fitness training library, you usually want a video/content platform or a headless CMS plus a video delivery layer.

Good options

1) Moodle / LearnDash / TalentLMS / Thinkific / Kajabi

These are learning platforms rather than pure CMSs, but they’re often a good fit for fitness libraries with structured programs.

• HD video delivery: Supported via embedded streaming or integrated video hosts.
• Offline access: Usually available through native mobile apps or downloadable course materials, depending on the platform.
• Best for: Subscription training libraries, structured workouts, member portals.

2) Vimeo OTT / Uscreen / Muvi / JW Player + CMS

These are strong for premium video delivery and member access.

• HD video delivery: Excellent, optimized streaming, adaptive bitrate.
• Offline access: Some offer mobile app offline downloads for subscribers.
• Best for: Fitness video subscriptions, branded apps, paid libraries.

3) Headless CMS + Video hosting + Mobile app

Examples:

• CMS: Contentful, Strapi, Sanity, WordPress (headless)

• Video: Mux, Vimeo, Cloudflare Stream, Brightcove

• App: React Native / Flutter app with offline caching

• HD video delivery: Very good through the video platform.

• Offline access: Implemented in the app, usually by caching/downloads for authorized users.

• Best for: Custom fitness platforms needing full control.

If offline access is a must

Offline video access is usually not a standard CMS feature because of DRM/licensing and storage constraints. It’s typically handled by:

• Native mobile apps
• Secure downloadable content
• DRM / expiring access tokens
• Offline-first app architecture

Practical recommendation

For a fitness training library, the most common solid setups are:

• Uscreen or Muvi if you want an all-in-one video subscription platform with offline-friendly mobile delivery.
• WordPress + Vimeo/Mux + custom app if you want flexibility and lower upfront cost.
• Moodle/Thinkific/Kajabi if your content is more course-like and less app-centric.

If you want, I can also give you:

1. a comparison table of the best platforms, or
2. a recommended stack based on your budget and whether you need a mobile app.