100% Free Private — no upload AI Detection

Blur Faces Automatically

Automatically detect and blur all faces in your photos. Uses face-api.js AI model running entirely in your browser. Your images never leave your device.

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AI detects and blurs all faces automatically

Accepts: any image
Output: same format
20
Never uploaded·How to use this tool
0 files
Related tools: Remove Background Photo Editor Compress Image Watermark Image

How it works

Blur faces in 3 steps

1

Upload images

Drop photos containing faces. The AI model loads once and is cached for future use.

2

AI detects faces

face-api.js identifies all faces using a neural network running locally in your browser.

3

Download blurred

All detected faces are blurred or pixelated. Download the privacy-protected images.

FAQ

Frequently asked questions

face-api.js uses a TinyFaceDetector model which works well for frontal and slightly angled faces. It may miss faces that are very small (less than ~50px), partially occluded, or at extreme angles. Always review the output before publishing.

Absolutely not. The face detection AI runs entirely in your browser. Your images are never uploaded anywhere. This is a privacy-first tool — it's designed specifically to protect privacy without creating a new privacy risk.

Gaussian blur applies a smooth blur effect. Pixelate creates a mosaic/censored-bar effect (like on TV). Both are effective anonymization methods. Pixelate is more stylized; blur is more natural-looking.

If no faces are detected, the image is downloaded as-is. You can try increasing the resolution of your image, or use our Photo Editor to manually blur a region.

Currently all detected faces are blurred. Selective face blurring (choosing which faces to blur) is on our roadmap for a future update.

Yes. Select multiple images and all faces in all images will be blurred automatically. Download as a ZIP when done.

Everything you need to know about Blur Face

Converting photos online has never been easier. JustDownSize processes everything locally in your browser using modern Web APIs — your files never leave your device, so your privacy is always protected.

Why use JustDownSize for blur face?

Unlike server-based tools that upload your files to remote servers, our tool runs entirely client-side. This means instant processing with no waiting in queues, no file size limits imposed by server constraints, and complete privacy — what you convert stays on your device.

Frequently asked questions about blur face

Our FAQ section above answers the most common questions. If you have additional questions, feel free to contact our support team.