Scared of leaking an API key on stream. I built the fix — would love your eyes before July 1.
Hey Product Hunt 👋 I'm Todd. I build apps live on Twitch, and for two years I've had the same low-grade fear running in the background: one careless cat .env, one wrong window shared, and an API key is on the internet forever.
Every tool I found to "blur my screen" was a browser extension — which is useless, because you don't leak secrets in a Chrome tab. You leak them in your terminal, your editor, a .env file, a database GUI. So I built Censr: a Mac app that watches whatever you're sharing and blacks out API keys, passwords, and PII before they reach your stream or screen-share. It shows up as a virtual camera in OBS, Zoom, Meet & Discord, runs 100% on-device, and has a panic hotkey (⌘⇧B) for the "oh no" moments.
The one thing I won't claim: that it's perfect. No detector is. It's defense in depth — a safety net for the slip-ups you can't catch yourself — not a "100% safe" promise. I'd rather be honest about that than oversell it.
We launch July 1. Two questions for this crowd while I've still got time to act on the answers:
If you stream or screen-share — what's the scariest thing you've almost (or actually) flashed on screen?
What would make you trust a tool like this enough to leave it running during a real session?
Follow the launch and founding members get it for $19. Genuinely grateful for any feedback. 🙏
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