Free facial motion capture is the process of recording your facial expressions — blinks, jaw, brows, lip-sync — and driving a 3D character’s face with them, at no cost — usually with a phone or webcam instead of a marker rig. Where body mocap tracks the skeleton, face capture tracks the dozens of micro-expressions that make a character feel alive. This guide covers the best free facial mocap tools, how the technology works, and which to pick for Blender, Unreal or Unity.
How free facial mocap works: ARKit and blendshapes
Most free facial capture rides on ARKit, Apple’s face-tracking framework. Using an iPhone’s TrueDepth (Face ID) camera, ARKit reads your face and outputs 52 blendshape coefficients — values like jawOpen, eyeBlinkLeft and mouthSmileLeft, each a number from 0 to 1. Your 3D software maps those 52 values onto matching shape keys on your character, so a smile on your face becomes a smile on the model. Understanding this is the key to free facial mocap: match your rig’s blendshapes to ARKit’s 52, and almost any free ARKit app will drive it.
The best free facial motion capture tools
Live Link Face (Epic, free iOS app) streams ARKit facial mocap live into Unreal Engine, driving a MetaHuman or custom rig. MetaHuman Animator takes it further inside UE5, turning an iPhone performance into high-fidelity facial animation on any MetaHuman — both free.
Unity Face Capture is Unity’s free ARKit app; with the Live Capture package it records facial performance onto a character directly in the Unity Editor.
PhizMocap is the standout free, open-source option that needs no iPhone — it does browser-based facial mocap from an ordinary webcam and streams into Unreal and Unity (and any OSC-compatible app). If you don’t own a Face ID iPhone, this is your free path.
QuickMagic estimates facial motion alongside body and hands from a single uploaded video, exporting it with the rest of the performance — handy when you want face and body captured together.
Between these, free facial capture is available whether you have an iPhone (ARKit apps) or only a webcam (PhizMocap).
iPhone (depth) vs webcam (AI) — which is better free?
- iPhone / ARKit (Live Link Face, Unity Face Capture): higher fidelity thanks to the depth sensor; needs a Face ID iPhone. Best for close-up, lip-synced performance.
- Webcam / AI (PhizMocap): free and hardware-light — any laptop camera works — but slightly less precise on subtle mouth shapes. Best when you don’t have an iPhone.
- From video (QuickMagic): captures face together with body from one clip; ideal for full-performance shots.
For a hero facial close-up, an iPhone wins; for quick, free, no-extra-hardware capture, the webcam route is unbeatable.
Getting facial mocap onto your character
- Rig your character’s face with ARKit-compatible blendshapes (the 52 standard shapes) — many base meshes and MetaHumans already include them.
- Connect the app: Live Link Face → Unreal, Unity Face Capture → Unity, or PhizMocap → either via its link.
- Record or stream the performance; preview it live on your character.
- Bake to an animation clip for editing and reuse.
Match the blendshapes once and every future capture drives your character instantly.
FAQ
Is facial motion capture free?
Yes. Live Link Face, MetaHuman Animator and Unity Face Capture are free with an iPhone, and PhizMocap is a free, open-source webcam option that needs no iPhone.
Can I do facial mocap without an iPhone?
Yes — PhizMocap does free webcam-based facial capture into Unreal and Unity, and QuickMagic estimates face from an uploaded video.
What are ARKit blendshapes?
ARKit outputs 52 facial coefficients (jawOpen, eyeBlink, mouthSmile, etc.) from 0 to 1 that map onto your character’s matching shape keys to drive its expressions.
Which free facial mocap is best for Blender?
Capture with a webcam tool or an ARKit app, then map the ARKit blendshapes to your Blender character’s shape keys; QuickMagic also exports face-plus-body from video.
Related: free AI motion capture for Unreal Engine, free AI motion capture for Unity, AI motion capture from video, and the free AI mocap directory.
Disclosure: some links above are affiliate links. We may earn a commission at no extra cost to you; it never affects our rankings. Live Link Face, MetaHuman Animator, Unity Face Capture and PhizMocap are independent products and are not affiliated with this site.