Pixelate or blur faces in a picture online
No mosaic mode here — soft blur and draw around faces on-device, black bar for name tags. Free and private.
Looking to pixelate faces in a picture online? Many phone galleries already offer mosaic; BlurThis does not ship a mosaic / pixelate mode — it uses soft Blur and Draw (plus Black bar for text). Soft blur around a face, traced freehand, is a free private option when you want people unrecognizable without uploading the photo — after or instead of the OS editor.
How to blur faces in a picture online (instead of pixelate)
Choose Blur, switch to Draw for hair and ears that a box would miss, and add padding so a cheek or logo on a shirt does not identify someone. Use Black bar for name tags and numbers in the same frame — blur is the wrong tool for digits.
On your phone or computer
Android: Many Samsung and Pixel galleries label a mosaic / pixelate brush — that is the classic look. Use the heaviest tile size, and cover hair and ears with padding.
iPhone: Markup has no true mosaic; use a filled shape over the face, or soft tools if available. Prefer opaque cover when the face must be gone for sure.
Desktop: Paint or Preview can drop a filled shape over a face. Soft blur in a browser tab is optional when you want a gentler look without installing an app.
Or finish in a browser (optional)
Want to do it in a tab with no install? BlurThis is one free option. The file stays on your device. Other browser tools work too if they paint on the page and do not upload the image.
- Open the editor in your browser. No account needed for BlurThis.
- Drop the screenshot, tap Upload from PC or Mobile, or paste with Ctrl / ⌘ + V on a computer.
- Pick Box or Draw. Use Black bar for phone numbers, emails, and OTPs. Use Blur for faces when a soft cover is enough.
- Drag over each private spot. Pinch or use + / − to zoom. Leave a little padding so no letter peeks out.
- Tap Download PNG. Send that file. Keep the original out of the chat or ticket.
Pixelate vs blur: honest differences
Classic mosaic (large square tiles) and Gaussian blur both hide a face for casual sharing. Mosaic is what many people search for because phone galleries label it “pixelate.” BlurThis focuses on blur and solid bars that bake into a PNG on your device. For everyday privacy — a group photo before you post, a hallway shot in a bug report — soft blur plus draw around the head is enough.
If you specifically need a chunky mosaic look for style, use an editor that offers that filter. If you need privacy without an upload, stay local with blur and draw. Brush-shaped covers are also covered in blur with a brush.
When blur on a face is not enough
Unique tattoos, jerseys with names, lanyards, and desk nameplates still identify people after the face is soft. Cover those too. Background screens that show Slack or email should get the same treatment as any screenshot blur.
Short text next to a face — a patient MRN, a student ID — gets a black bar, not a light smear. Researchers have recovered mosaiced text; treat digits as bars. See can you unblur a screenshot.
Group photos and meeting tiles
Zoom and Meet tiles are faces plus labels. Blur the tile or draw around the person, then bar the display name. The Zoom / Meet screenshot guide is the chrome checklist.
FAQ: Does BlurThis have a pixelate button?
No. Use Blur and Draw for faces, Black bar for text and digits. That is the honest feature set — free, on-device, no mosaic mode.
FAQ: Is soft blur recoverable into a clear face?
Heavy blur that removes facial structure is hard to reverse into a reliable ID. A tiny light smear is not. Zoom to 100%, add more blur or a larger drawn region until you would not recognize the person.
FAQ: Box or Draw for faces?
Box is fine for a frontal headshot. Draw fits angled faces, hats, and hair that sticks out of a rectangle.
FAQ: Should I upload to an “auto pixelate faces” site?
Only if you accept a full-resolution upload. Auto face detect is convenient and often wrong on side profiles. Manual blur on-device is slower and safer for private photos.