Blob tracking effect
Track everything that moves
Upload a clip and surveillance-style boxes lock onto every moving subject. Style them, wire them together, export a flawless MP4.
What is the baby track effect?
Baby track is the viral blob tracking look: white squares snap onto people, birds and cars, each stamped with a decimal readout like an AI vision system showing its work. It borrows the visual language of surveillance footage and object detection demos, and it makes any ordinary clip feel watched.
zlabz runs the whole effect in your browser. Motion, brightness or hybrid detection finds the subjects, stable IDs keep each box glued to its target, and every control from box style to connection lines repaints the preview live. When you export, the same engine renders each frame offline for a perfect file.
How it works
Four steps to the tracked look
Drop in any clip
MP4, MOV or WebM up to 150MB. A sample clip is already playing when you arrive, so you can explore before you upload.
Detection locks on
Pick motion, brightness or hybrid detection. Boxes with decimal labels snap onto subjects instantly, right in the preview.
Style every box
12 box styles, region filters, connection lines, labels, colors, trails and speed. Every change repaints the preview live.
Export a flawless MP4
Frames render offline one by one, so nothing drops. The original audio comes along, matched to your playback speed.
Why zlabz
Built to beat the other trackers
Every browser blob tracker draws similar boxes. The difference shows up when you press export.
How the alternatives stack up
Artkit BabyTrack
The original browser tool with fun presets. Its export captures the live preview in real time, and its own tips note that quality drops at heavy settings. High-quality export sits behind a paywall.
Effect.app Blob Tracker
Tracks bright or keyed blobs with boxes, labels and connecting paths. Solid for stills and quick clips, with fewer detection and styling options.
Mondniles Blob Tracker
TouchDesigner-inspired overlay look with boxes, crosshairs and IDs. A nice aesthetic, with limited label, audio and export control.
Adobe After Effects
Full manual control if you have the license, the skills and the render time. Overkill for a meme format you want out today.
Feature notes reflect the public versions of these tools as of July 2026. All names belong to their owners. Try them and compare the exports yourself.
Made for every feed
The tracked look reads instantly on any platform.
Music video B-roll
Lock boxes on dancers and crowds for AI-vision edits that cut on the beat.
Street footage
Turn a phone clip of a busy square into surveillance-style found footage.
Sports breakdowns
Track players and the ball to give highlights an analytics-room look.
Meme edits
Label your cat, your friends or the pigeon that stole your chips.
Titles and intros
Open on a tracked scene, then cut to your title while the boxes still echo.
VJ loops
Feed the boxes, connections and trails into live sets and installations.
Questions, answered
Is the baby track effect free?
Yes. Every style, filter and speed is free. Generating uses free daily credits, and free exports carry a small watermark you can remove with Pro.
Do I need to install anything?
No. Detection, preview and export all run in your browser. Your clip never uploads to a server, it stays on your device.
Why does my export look better than other tools?
Most browser trackers record their own preview in real time, so heavy scenes drop frames. zlabz seeks the source video frame by frame and renders each one offline before encoding.
Does the exported video keep its audio?
Yes. The original track is decoded and rendered into the export, and it stays in sync even when you change playback speed.
What footage works best?
Clips with clear subject contrast: people on pavement, birds in the sky, headlights at night. Use brightness mode for bright subjects and motion mode for busy scenes.
How long can my clip be?
Up to 30 seconds per export at up to 150MB. Longer uploads are trimmed to the first 30 seconds automatically.
Ready to lock on?
Open the editor and the demo is already tracking. Drop your clip and export in minutes.
Try Baby Track free