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# HLS and DASH Parser modules

The [HLS parser](doc:hls-parser) and [DASH parser](doc:dash-parser) external modules are available for you to import into your EdgeWorkers code bundle to build the following video use cases. 

- [Manifest and Playlist Manipulation](doc:manifest-and-playlist-personalization)
  - [Bitrate filtering](doc:manifest-and-playlist-personalization#filter-bitrates)
  - [Resolution filtering](doc:manifest-and-playlist-personalization#filter-resolutions)
  - [Resolution re-ordering](doc:manifest-and-playlist-personalization#re-order-resolutions)
  - [Language localization](doc:manifest-and-playlist-personalization#localize-language)
- [Live program replacement](doc:live-program-replacement) (Currently only supported with the HLS module.)
- [Content insertion](doc:content-insertion)