Stop blurring API keys in your video editor — record clean instead

If you make coding videos, you know the chore: you finish a great tutorial, then sit in your editor scrubbing frame by frame, dropping blur boxes over every API key, .env value, and token that flashed by. It's slow, it's tedious, and it's the easiest thing in the world to miss a frame — and a single un-blurred frame is enough to leak a key.

There's a better way: don't fix it in post. Record clean from the start, so a secret never makes it into the footage in the first place.

Why blurring in post is the wrong place to solve it

• It's manual and slow. Every secret needs a tracked blur region across every frame it's visible.
• It's easy to miss. A key that scrolls past, a value in a corner, a notification you forgot — one missed frame and it's published.
• It scales badly. The more you record, the more post-production tax you pay forever.
• Light blur can be reversible. A soft blur or pixelation of on-screen text can sometimes be undone — a solid cover is safer.

The fix: seal secrets at record time

Instead of recording your raw screen and cleaning it up later, record a feed that's already redacted. That's what Censr does: it watches your screen on-device, detects API keys, tokens, passwords, and PII the instant they appear, and blacks them out — then exposes that clean feed as a virtual camera.

So your workflow becomes:

1. Run Censr and start protecting your screen.
2. In OBS, add Censr as your video source and hit Record (instead of, or alongside, going live).
3. Your recording is sealed frame-by-frame as you go — no blur boxes in post, ever.

Because the redaction happens before the frame is captured, there's no un-blurred original sitting in your footage to slip through.

Two honest notes: (1) Censr is defense in depth, not a 100% guarantee — pair it with a panic key and an always-blur list. (2) Censr seals secrets at record time. If you've already shot raw footage with secrets in it, you'll still need to blur those in your editor (or re-record through Censr) — the win is that you never have to again.