Blur Face in Image Online Tool
Blur Face in any Images with manual region selection. Free, offline, client-side - your images never leave your browser. Secure and private.
Click and drag to mark each face, adjust the blur, download the result. Runs entirely in your browser — no uploads, no AI service, no tracking.
How to Use Blur Face in Image Online Tool
- Choose your image. Click "Choose an image" and pick a JPG, PNG, WebP, or GIF from your device. The photo loads onto the canvas below - nothing is uploaded anywhere.
- Draw a rectangle over each face. Click and drag on the image to mark each face you want hidden. You can draw as many rectangles as you need; the outline turns solid blue when the region is saved. Every rectangle is independent - one per face.
- Adjust the blur intensity. Use the slider (2-30 pixels) to set how heavy the blur should be. 8-12 px is a good default. Moving the slider re-renders the preview so you can compare levels before downloading.
- Apply the blur. Click "Apply Blur" or press Ctrl+Enter. The canvas updates to show the blurred version in under 100 ms per region. Areas outside your rectangles stay pixel-perfect.
- Undo or clear if needed. "Undo region" removes the most recent rectangle (Ctrl+Z also works). "Clear regions" removes all of them and restores the untouched original.
- Save or share. Click "Download PNG" to save the blurred image. Or click "Copy image" to put the PNG onto your clipboard (supported in Chrome, Edge, Firefox - Safari users should use Download).
- Re-upload to start over. Choosing a new image at any time resets the canvas and clears all regions automatically.
Frequently Asked Questions
Is my photo uploaded anywhere?
No. Everything happens in your browser using the Canvas API. The image is never sent to any server, never stored on any database, and never passed to any AI service. You can disconnect from the internet after the page loads and the tool still works.
Why is face selection manual instead of automatic?
Automatic face detection requires either a large machine-learning model downloaded from a remote CDN or a cloud API that sees your photo. Both introduce privacy risks. Manual selection keeps the tool tiny (<15 KB), works offline, and guarantees your image never leaves the device.
Can I blur more than one face at a time?
Yes. Draw a separate rectangle over each face you want hidden. Every rectangle you add is remembered, and “Apply Blur” processes all of them at once. There is no practical limit – you can mark dozens of faces in a group photo.
What image formats are supported?
Any format your browser can decode, which includes JPG, PNG, WebP, GIF, and usually AVIF and HEIC on modern devices. The output is always a PNG to keep the blurred regions crisp.
Is the blur reversible?
Once you download or copy the blurred PNG, the blur is permanent – there is no mathematical way to recover the original pixels from a Gaussian blur. Keep a copy of the original file if you might want to edit it again later.
Does it work on phones and tablets?
Yes. The region drawing uses Pointer Events, which handle mouse, finger, and stylus input the same way. On small screens the buttons stack vertically below 768 px wide for easier tapping.
Is this tool free?
Yes. Unlimited images, no signup, no watermarks, no paywalls, no ads. The only thing we ask is that you bookmark it if it was useful.
Are non-face regions usable too?
Yes – the tool blurs whatever rectangle you draw. You can use it to hide licence plates, screen contents, tattoos, signatures, or any sensitive detail in the frame. It is a general-purpose privacy tool, not just faces.
What keyboard shortcuts does it support?
Ctrl+Enter (Cmd+Enter on Mac) applies the blur. Ctrl+Z (Cmd+Z on Mac) removes the most recent region. Escape cancels a rectangle you are currently drawing.
Why should I blur faces before sharing a photo?
Blurring unknown faces before posting to social media, research papers, or news articles protects people who never consented to being identified. For GDPR-regulated contexts (EU), anonymising identifiable features is often a legal requirement, not just a courtesy.