videojs/mux.js

Health v2 · maintenance only

Adoption not part of the score

1223 stars · 219 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

mux.js is a lightweight JavaScript library for inspecting and manipulating video container formats such as MPEG2-TS, fMP4, and FLV. Its core feature is a transmuxer that converts MPEG2-TS segments into fragmented MP4 segments suitable for playback via Media Source Extensions (MSE).

Use cases

• transmux mpeg2-ts segments to fmp4 in the browser
• parse h264 and aac streams from transport stream video
• inspect mp4 box metadata like timescale and decode time
• build a custom hls video player with mse
• generate fragmented mp4 segments for media source extensions
• handle flv video content in javascript

When to choose

• you need client-side transmuxing of mpeg2-ts to fmp4 for MSE-based playback
• you are building or extending a video player like video.js with hls support
• you need lightweight parsing of video container formats without heavy dependencies

When to avoid

• you need full video encoding, decoding, or transcoding rather than container remuxing
• you work with formats outside ts, fmp4, and flv
• you need a server-side transcoding pipeline - tools like ffmpeg are better suited

Facets

library · maturity stable

video-processing parser serialization media web-development frontend browser cross-platform transmuxing mpeg2-ts fmp4 hls mse h264 aac mp4-inspector videojs video nodejs javascript

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markdown · JSON · MCP: product_card(name="videojs/mux.js")