How do I blur email addresses in a Loom video?

Install BlurMask, open the page you'll record, and press Alt + B. Click each email address to blur it, or enable Smart PII detection to mask every email automatically, then start your Loom recording.

Can BlurMask detect emails automatically?

Yes. BlurMask Pro scans the page for email addresses, phone numbers, credit cards, and revenue figures and masks them for you in one click — no frame-by-frame video editing afterward.

Does blurring work during the recording, not just before it?

Yes. Because the blur is applied to the live page, anything recorded — Loom, Zoom, OBS, or any screen recorder — captures only the blurred pixels. You can even blur while recording.

Use Case Guide

How to Blur Emails in Loom Videos & Screen Recordings

Recording a tutorial or walkthrough almost always means customer emails end up on screen. Here is how to mask them automatically before you hit record — no frame-by-frame editing afterward.

Stop leaking emails in your recordings

BlurMask is free to install on Chrome and Firefox.

Add to Chrome (Free) Add to Firefox (Live)

Step-by-Step: Recording Without Exposing Emails

Step 1: Install BlurMask

Add BlurMask to Chrome or Firefox. It works immediately — no account required.

Step 2: Open the Page You'll Record

Open your inbox, CRM, or admin dashboard. Press Alt + B to enter blur mode.

Step 3: Blur Emails Manually or Automatically

Click each email address to blur it, or drag a box over the whole list. On Pro, Smart PII detection finds and masks emails, phone numbers, and credit cards automatically on page load.

Step 4: Record With Loom, Zoom, or OBS

Start recording. Because the blurs live on the page itself, the recording only ever captures blurred pixels — and the blurs persist through reloads and SPA navigation mid-recording.

Why Blur Before Recording Instead of Editing After?

Minutes instead of hours: no motion-tracking blur boxes across frames in a video editor.
Nothing to forget: auto-detection masks emails you didn't notice on a busy dashboard.
Already-compliant by default: sensitive data never enters the recording at all.

The Weekly Recording Workflow

If you publish walkthroughs or course videos regularly, set up a repeatable routine so privacy never depends on memory:

Prep once (5 minutes): open the app you record most, press Alt + B, and blur the recurring leaks — sidebar emails, account chips, notification trays.
Save it as a preset: on Pro, name it "Loom" or "Tutorial". Every future recording session starts from a ready-made redaction map.
One sweep before hitting record: run Smart PII detection to catch emails, phones, and card numbers that loaded since your last visit.
Record as usual: navigate, click, refresh mid-take — blurs re-apply automatically through reloads and SPA navigation.
Upload with confidence: sensitive data never entered the recording, so there's no editing pass and no risk of shipping a leak.

Frequently Asked Questions

Does this work with Loom's desktop recorder?
Yes. BlurMask changes what's on the web page, so any recorder capturing your screen or window — Loom desktop, browser extension, Zoom, OBS — captures the blurred result.

Can I reuse my blur setup for weekly recordings?
Yes. Blurs are remembered per domain. On Pro, named presets like "Loom" restore your whole blur setup in one click.

What about data that appears while I'm recording?
Manual blurs and auto-detection both keep working after you hit record. New notifications or lazy-loaded rows with emails are covered by your existing blurs, and you can add a new blur mid-recording without stopping the take.

Related Guides

Protect more than email: blur your Stripe dashboard before a demo, blur your live screen share on Zoom and Meet, or hide all kinds of PII with a Chrome extension. Comparing tools? See our honest take on BlurMask alternatives.