Record tutorials without blurring anything in post

Most screen recordings are made in real accounts. The dashboard you are explaining has a real Stripe balance, the settings page has a real API key, and the sidebar shows real customer emails. The usual fix is to record first and blur later: scrub through the timeline, draw a mask, track it as the page scrolls, export, and hope you didn’t miss a frame.

BlurSite flips the order. You blur the sensitive parts of the webpage itself, then record. Because the blur is part of the page, every recorder captures it: Loom, OBS, QuickTime, Camtasia, ScreenFlow, or the recorder built into Zoom.

What usually leaks in a tutorial

• API keys and tokens on developer settings pages, in .env previews, or in a dashboard’s “reveal key” field.
• Revenue and usage numbers on analytics, billing and admin dashboards.
• Customer names and emails in tables, inbox previews and support tools.
• Your own account details: the avatar menu with your email, billing addresses, and the last four digits of a card.

These are easy to miss when you are concentrating on the explanation. A single frame showing a live secret key is enough for someone to pause the video and copy it, and once a video is public you can’t take that frame back.

How to set up a recording with BlurSite

1. Open the page you’re about to record and click the BlurSite icon.
2. Run Smart Scan to find emails, card numbers and API keys on the page, and blur them in one click.
3. Click any other element you want hidden, such as a revenue figure or a customer row. Use area blur to draw over a region, like a chart or a whole table.
4. Turn on keep blur for the page so the same blurs come back when you reload or record a second take tomorrow.
5. Switch on presentation mode so BlurSite’s own toolbar and notifications stay out of the recording, then hit record.

Why blur before recording beats blurring after

Blurring in an editor is a per-video cost that grows with every scroll and page change, because each one means another mask to place and track. Blurring the page is a one-time setup per page. Saved blurs carry over to the next video, so a weekly tutorial series stops costing editing time.

It also removes a failure mode. A missed frame in post-production is invisible until a viewer spots it. When the page itself is blurred, the sensitive value is never in the recording.

Good habits for creators

• Keep a demo account for tutorials where you can, and use BlurSite for the details a demo account can’t hide, like your own email in the header.
• Rotate any key that has appeared unblurred in a published video, even briefly.
• Close unrelated tabs, because tab titles and favicons show up in full-screen recordings.
• Re-check saved blurs after a site redesign. If the layout changes, an element blur may need to be placed again.

For a longer walkthrough, read blur before you record and the getting started guide.