Faders
A per-viewer mixer for Twitch: turn the music down, keep the streamer up
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Browser-Based Tempest
Turn your monitor into a VHF Morse transmitter from a browser tab
It shows, in a single web page, how a screen alone can leak data over radio, a vivid lesson for anyone thinking about air-gapped security.
This open-source web app makes a computer monitor broadcast Morse code on VHF using only the display's electromagnetic leakage: it modulates on-screen patterns against the pixel clock so a nearby radio, tuned to around 148.5 MHz for 1080p at 60Hz, can hear it. No radio hardware on the sending side. MIT licensed with a live demo, 51 stars, and coverage from Hackaday and RTL-SDR.com; the author notes a citation by the UK NCSC.
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