mp4-muxer
MP4 multiplexer in pure TypeScript with support for WebCodecs API, video & audio.
webm-muxer
WebM multiplexer in pure TypeScript with support for WebCodecs API, video & audio.
jmuxer
jMuxer - a simple javascript mp4 muxer for non-standard streaming communications protocol
@libp2p/mplex
JavaScript implementation of https://github.com/libp2p/mplex