Pitahaya
Pitahaya is like a cable TV scrambler, but for live streaming video (e.g. on YouTube, Twitch, etc). You can transmit different kinds of media (audio/video) or raw data over a scrambled video signal, and the signal can be decoded in real time directly in the browser with a bookmarklet. It has support for optional password-based encryption.

To try it out, click this link → Pitahaya v0.2.3. You can also drag the link to your bookmarks bar to decode video on other sites.

For more details on how to encode/decode, see the info page.
The current version of Pitahaya is 0.2.3
Page last updated January 14, 2021 by fanfare.