HTTP dynamic streaming, or HDS, is an adaptive bitrate streaming method developed by Adobe. HDS delivers MP4 video content over HTTP connections. HDS can be used for on-demand streaming or live streaming. Since they are delivered over HTTP, HDS streams can be cached — either by a content delivery network (CDN) or another caching server.

HDS was developed for use with Adobe Flash Player and Adobe AIR. Adobe Flash Player has been discontinued, and an outside firm now supports AIR instead of Adobe. HDS is not supported by Apple devices.