Blur Faces — Complete Guide

1What is Blur Faces?

Privacy tool that detects faces and applies a blur.

Blur Faces is part of the Pixly suite of professional image tools. It runs entirely in your browser with no software to install, requires no design experience, and delivers results in seconds — whether you are processing one image or an entire batch. Every operation is applied on the full-quality decoded image, so the output preserves the fidelity of your original file.

2How does Blur Faces work?

Face blurring detects likely face regions using a skin-tone clustering pass combined with feature-proportion heuristics (eye-to-mouth distance, oval shape priors). Each detected region receives a heavy Gaussian blur whose intensity you control, with feathered region edges so the blur blends into the surroundings instead of leaving hard rectangles.

Because detection is heuristic, the tool deliberately over-covers: it prefers to blur a few extra areas rather than miss a face. You can raise intensity for complete anonymization — at maximum settings no identifying detail survives.

3How to use Blur Faces — step by step

Using Blur Faces takes less than a minute from upload to download. The tool card at the top of this page is the live editor — everything below explains exactly what happens behind the scenes.

1. Step 1. Upload an image.
2. Step 2. Run face detection.
3. Step 3. Download the privacy-protected image.

4Key features at a glance

• Automatic face detection
• Adjustable blur strength

Each feature is designed to solve a specific, real-world problem — from page-speed optimization for developers to platform-perfect sizes for social media managers. Together they make Blur Faces a dependable part of any image workflow.

5Pro tips for the best results

A few professional habits will get noticeably better output from Blur Faces:

• Check every result before publishing — heuristic detection can miss faces at extreme angles.
• For photos taken in bright daylight, slightly lower intensity avoids blurring sunlit skin-colored background patches.

6Who uses Blur Faces?

Web developers rely on it to keep pages fast — properly prepared images are the single biggest performance win most sites can make. Designers use it for the last mile of production work: format handoffs, corner rounding, frames and exports that match the platform they are shipping to.

E-commerce teams process entire product catalogs to consistent sizes and weights, which measurably improves load speed and conversion. Content creators and social media managers depend on it for daily platform-ready assets, while students and office teams use it to shrink scans and photos so they fit comfortably inside emails, forms and presentations.

7Supported image formats

Blur Faces works with all widely used image formats. Each format has strengths that make it the right choice for a particular job:

8Privacy & security

Your images stay yours. Files are transferred over an encrypted connection, processed on secure servers, and automatically deleted within 24 hours — nothing is shared with third parties and nothing is used for training or advertising. Because Pixly works in the browser, you can also process images from any device without installing software or creating an account.

9Frequently asked questions