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Blur Video Area Pro

Free AI-powered video blur tool with face detection, auto-tracking, and timeline support. Censor faces, hide license plates with pixelate or blur effects.

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About Blur Video Area Pro with AI

Advanced AI-powered video blur tool with automatic face detection, motion tracking, and multiple blur effects. Easily censor faces, hide license plates, or blur sensitive information in videos. Features real-time preview, keyframe animation, and pixelate/mosaic effects.

How does AI face detection work?

Our AI uses TensorFlow.js and face-api.js to detect faces in your video frames. Simply pause at any frame and click 'Detect Faces' - the AI will identify all visible faces and allow you to create blur regions automatically. The AI models run entirely in your browser for privacy.

What is Auto-Track feature?

Auto-Track uses AI to follow faces as they move through your video. It automatically creates keyframes at regular intervals, tracking face positions over time. This saves hours of manual keyframe creation for videos with moving subjects.

What blur effects are available?

Three blur types: Box Blur (fastest processing), Gaussian Blur (smoother, higher quality), and Pixelate/Mosaic (creates a blocky censored effect). All effects can be adjusted with the intensity slider from 1-50.

How do I add multiple blur regions?

You can either use AI detection to automatically create regions for detected faces, or click 'Add Region' to manually create blur areas. Each region has independent position, size, time range, and keyframes.

What is real-time blur preview?

When enabled, you'll see the actual blur effect applied on the video canvas as you edit. This helps you visualize exactly how the final video will look. Disable it on slower devices for better editing performance.

How does motion tracking with keyframes work?

Motion tracking allows blur regions to follow moving objects. Seek to different times in your video, adjust the blur position, and add keyframes. The tool smoothly interpolates between keyframes to create fluid movement.

Can AI detect faces in any video?

AI works best with clear, front-facing faces. It may struggle with: very small faces, extreme angles, heavy occlusion, or very dark/bright frames. If AI doesn't detect a face, use manual mode to draw the blur region yourself.

How long does processing take?

Processing time depends on video length, resolution, and number of blur regions. A 30-second 720p video typically takes 1-3 minutes. Use 'Ultrafast' or 'Superfast' encoding for quicker results.

Is my video private and secure?

Yes! All processing (including AI face detection) happens entirely in your browser using WebAssembly. Your video is never uploaded to any server. The AI models are downloaded once and cached locally.

What video formats are supported?

Input: MP4, WebM, MOV (max 200MB). Output: MP4 (H.264) or WebM (VP8). MP4 is recommended for best compatibility across devices and platforms.