Video HubVideo tools

castor

castor is an open-source video tools project written in Go with 2,202 stars on GitHub.

The authors describe it as: “Point it at any web page and it finds the video, extracts the stream, transcodes it and casts in real time to your TV. It even burns subtitles….”

Category
Video tools
Type
Open source
Platform
Go project
Pricing
Free / open source
License
MIT
GitHub stars
2,202
Last updated
2026-08-03

GitHub repo →

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Top castor alternatives

FFmpeg“Mirror of https://git.ffmpeg.org/ffmpeg.git”
Profile →  ·  GitHub ↗  ·  Site ↗
remotion“🎥 Make videos programmatically with React”
Profile →  ·  GitHub ↗  ·  Site ↗
iina“The modern video player for macOS.”
Profile →  ·  GitHub ↗  ·  Site ↗
lossless-cut“The swiss army knife of lossless video/audio editing”
Profile →  ·  GitHub ↗  ·  Site ↗
cobalt“best way to save what you love”
Profile →  ·  GitHub ↗  ·  Site ↗
hyperframes“Write HTML. Render video. Built for agents.”
Profile →  ·  GitHub ↗

See the full list of castor alternatives →

Frequently asked

What is castor?

castor is an open-source video tools project written in Go with 2,202 stars on GitHub. The authors describe it as: “Point it at any web page and it finds the video, extracts the stream, transcodes it and casts in real time to your TV. It even burns subtitles….”

Is castor free?

castor is open source — free to use; check its license for redistribution terms.

What are the best castor alternatives?

The closest alternatives in the same category include FFmpeg, remotion, iina, lossless-cut, cobalt — each has a live profile with facts and its own alternatives list on this hub.