Reversible blur & pixelation
A light Gaussian blur or a pixelated patch added in an editor can sometimes be reconstructed: the original text is still encoded in the image.
For docs & tutorials
Blur sensitive data before you take a screenshot
Ship clean screenshots every time. Blur names, emails, account numbers and any private detail directly in the page, then capture. No image editor, no leftover data behind the blur.
- No image editor needed
- Nothing hidden behind the blur
- Works with any capture tool
Updated August 2026
Quick answer
To redact a screenshot the safe way, blur the sensitive fields in the page first, then capture, so the image only ever contains frosted pixels with no original data hidden underneath. Blurr lets you click or draw over names, emails, and account numbers, turn the intensity up to a 20px blur, and screenshot with any tool. No image editor, and no original layer left in the file.
The risk
Editing the blur into the image afterward is the risky part
Screenshots run through every doc, tutorial, onboarding guide, support ticket, and bug report. Each one can quietly carry a real customer email, an internal account number, or a teammate’s name. The usual fix is to open the capture in an editor and smudge it afterward, but that is exactly where redaction fails.
A black box over live text
Drop a rectangle over selectable text in a PDF or doc and the words underneath are often still copyable, right through the box.
The one field you missed
Scrubbing a long screenshot by hand after the fact is slow and easy to get wrong. One email or account number slips through into the published image.
How Blurr helps
Redact in the page, then capture a clean image
Blurr moves the redaction from the image editor into the page itself. Click a field, draw a region, or sweep every matching string with keyword redaction, then screenshot. The pixels behind the blur are gone from the capture, so there is nothing left to leak.
Click a field to redact it
Click any element (a name, an email, a whole table row) and hold Alt and scroll to grow the selection from a single word up to the entire card.
Maximum-strength blur
Push the intensity slider to maximum for a 20px blur. That is well past the 12px to 16px text most pages use, so body copy, emails, and account numbers are gone rather than smudged.
Redact every match at once
Smart keyword redaction frosts every email, card number, or name across a long page before you scroll-capture, so nothing slips through.
Consistent across a set
Blurr restores the blurs you drew when you reopen a page, so a multi-shot tutorial or a walkthrough stays consistent frame to frame.
Nothing hidden underneath
Because you redact in the page before capturing, the saved file contains only frosted pixels: there is no original data behind the blur to recover.
Works with any capture tool
Use your OS screenshot shortcut or any snipping app. Blurr does the redaction in the browser, so every tool produces a clean image.
Step by step
Blur a screenshot in five quick steps
No editor, no post-processing: the capture is clean the moment you take it.
- 1
Open the page you want to capture
Load the doc, ticket, or app screen exactly as you want it to appear in the screenshot.
- 2
Open the Blurr toolbar
Press Ctrl + Shift + Y (Cmd + Shift + Y on Mac) or click the Blurr icon to bring up the on-page toolbar.
- 3
Blur each sensitive field
Click an element to hide a whole row, or draw a box for a precise region: names, emails, account numbers.
- 4
Turn the intensity up
Drag the intensity to maximum, a 20px blur. For a short, guessable string such as a PIN or a 4-digit code, crop it out of the shot instead of blurring it.
- 5
Take your screenshot
Capture with any tool. The image contains only frosted pixels. No data hides behind the blur.
Keep exploring
More ways to blur before you share
Blurr adapts to whatever you are about to publish or send.
Screen sharing on calls
Blur salaries, customer data and dashboards before you present on Zoom, Meet or Teams. Share a tab to hide the browser frame, and mask your other tab titles while you are at it.
Learn moreDemoing with real data
Hide API keys, secrets, connection strings and customer records with one tap before you demo, pair, or file a bug. Presets built for exactly this.
Learn moreStreaming & recording
Auto-blur images, videos and ads, and hide your own name, email and address so you never dox yourself live on stream or in a tutorial recording.
Learn moreFAQ
Redacting screenshots, answered
Why blur before the screenshot instead of editing the image afterward?
Because redacting in the page means the sensitive text is never captured in the first place. Your saved image only ever contains frosted pixels: there is no original data hidden underneath, unlike a black box pasted over live text or a light blur that image tools can sometimes reverse.
How strong does the blur need to be?
Blurr’s intensity slider tops out at a 20px blur, which is comfortably past the 12px to 16px text most pages render, so names, emails, and account numbers are destroyed rather than softened. Strength is not the only variable, though: what matters is how many possible values the hidden text could have. A blurred paragraph is safe because the space of candidates is effectively infinite. A blurred 4-digit PIN is not safe at any strength, because there are only 10,000 of them and an attacker can render every one. For short, predictable strings, crop them out of the shot or cover them after capture with a solid shape.
Can I redact the same fields across a whole set of screenshots?
Yes. Blurr saves the blurs you drew and restores them the next time you open the page, so a tutorial or a multi-shot walkthrough stays consistent. Pro keeps them permanently and can auto-blur repeating fields like emails across a whole site with keyword redaction.
Do I need Photoshop or a separate image editor?
No. Blurr redacts right in the browser before you press capture, so any screenshot tool (your operating system shortcut, a browser extension, or a snipping app) produces a clean, share-ready image with no post-editing.