HLS vs DASH: Streaming Protocol Comparison Guide
Detailed comparison of HLS and DASH streaming protocols. Features, browser support, latency, and which one to choose for your project.
The Two Giants of Streaming
HLS and DASH are the two dominant adaptive streaming protocols on the web today. Both use similar concepts (segments, playlists, adaptive bitrate), but they differ in standardization, browser support, and industry adoption.
| Feature | HLS | DASH |
|---|---|---|
| Developer | Apple (2009) | MPEG (2012) |
| Standard | Proprietary (public spec) | ISO standard (MPEG-DASH) |
| Native browser | Safari only | No native support |
| Library | hls.js | dash.js |
| Manifest format | M3U8 (playlist) | MPD (XML) |
| Segment format | .ts or .fmp4 | .fmp4 or .webm |
| Codec agnostic | Limited | Fully codec agnostic |
Browser Support Comparison
Neither protocol is natively supported in all browsers (except HLS on Safari). Both require JavaScript libraries:
- Safari: HLS native, DASH via dash.js
- Chrome/Edge: Both via their respective JS libraries
- Firefox: Both via their respective JS libraries
- iOS: HLS native (Safari requirement)
- Android: DASH via ExoPlayer (native on many devices)
Which One Should You Choose?
Choose HLS if:
- iOS/Apple device support is a priority (HLS is required for Safari)
- You want the widest possible compatibility with the simplest setup
- You're using a CDN or video platform that defaults to HLS
- You want to use our online HLS player for testing
Choose DASH if:
- You need codec-agnostic delivery (AV1, VP9, etc.)
- You're building an Android-first application
- You want an open ISO standard
- You need advanced features like multi-period and XLink
Real-World Adoption
In practice, HLS has wider adoption due to its longer history and Apple's market influence. Most streaming platforms (YouTube, Twitch, Netflix) use HLS for web delivery. DASH is more common in Android apps and broadcast workflows. Many platforms now encode once and package for both HLS and DASH simultaneously.
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