Why Blob Tracking Online Works Here
Blob tracking detects contiguous regions in a video frame — a hand, a dancer's silhouette, a ball, a moving vehicle — and follows their position, size, and speed frame to frame. It's the workflow behind VJ visuals, interactive installations, dance performance tracking, and motion-triggered generative art. Vis Exo brings that same real-time tracking into a free, no-install browser tool — open the page below and it's already running.
Real blob detection, not a demo
Detects contours and tracks each blob's centroid frame to frame, with adjustable threshold, blur, and blob-size filtering to fit whatever footage you load.
Works on webcam, video, or a photo
Use a live webcam feed for real-time tracking, load an uploaded video file, or run detection on a single still photo — same pipeline either way.
A dozen+ generative overlay styles
Neon outlines, thermal blooms, constellation links, halo auras, VHS glitch, and more render directly on top of tracked blobs — built for visual performance, not just bounding boxes.
Six other tracking modes, same app
Switch to Motion, Face, Object, Pose, Person, or Hand tracking from the same interface without reloading — blob tracking is one of seven modes, not a standalone tool.
Export what you track
Record tracked video in WebM or MP4, export a PNG frame sequence, or pull frame-by-frame coordinate data as CSV.
Nothing ever uploaded
All detection runs locally via WebAssembly computer vision — no camera frame, video, or photo leaves your device, and there's no account to send it to in the first place.
Frequently Asked Questions
What is blob tracking?
Blob tracking is a computer vision technique that detects contiguous shapes ("blobs") in a video frame and follows their position, size, and speed from frame to frame — the same technique behind TouchDesigner's Blob Track TOP.
Is this blob tracking tool actually free?
Yes — every tracking mode, visual style, and export option is free with no signup, watermark, or usage limit.
Do I need to install anything to track blobs online?
No. It runs entirely in your browser via WebAssembly computer vision — open the page and start tracking immediately.
Can I run blob tracking on a photo instead of live video?
Yes — upload a single photo and blob tracking detects contours in it the same way it does on live or recorded video.
How is blob tracking different from motion tracking?
Blob tracking detects and follows the shape, size, and position of distinct objects frame by frame using contour detection, while motion tracking only flags pixels that changed between frames. See the Webcam Motion Tracking guide for that mode specifically.
