OBS as a ToneCast screen
Connect OBS Studio to any ToneCast screen via Browser Source — stream or record what you cast from the dashboard.
Your cast URL
Full screen (opaque)
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Transparent overlay (timer / text / teleprompter)
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Use this over a camera or game in OBS. The page background is alpha-transparent — it does not include the ToneCast photo. Fire Stick / room screens still composite over the current slide when Overlay is on.
Install the OBS script
- Download tonecast.lua
- OBS → Tools → Scripts → + → select the file
- Paste your slug + screen, then click Add / Update ToneCast Source
Manual Browser Source
- Sources → + → Browser
- Paste the transparent overlay URL (or full-screen URL for the complete ToneCast output)
- Width / height: 1920×1080 (or your canvas size)
- Check Shutdown source when not visible
- Custom CSS (required for a true transparent overlay):
body { background-color: rgba(0,0,0,0) !important; } - Place this source above your camera/game. Timer, text, teleprompter, titles, and lower thirds keep their on-screen position with no custom slide background.
- After a ToneCast update, right-click the Browser Source → Refresh (or check Refresh browser when scene becomes active) so OBS is not holding a cached page.
obs=1 hides cast chrome.
overlay=1 makes the page alpha-transparent and skips the ToneCast photo so OBS can sit over other sources. Overlay graphics still appear if the dashboard Overlay toggle is off.