Build any avatar.
Bit by bit.
Snap 3D parts onto a live skeleton, tune materials, and export a production-ready GLB — all in your browser. Free to use.
Start Building — FreeBrowse the Marketplace →
What you see is what exports.
How it works
Everything is modular. Every part connects to a bone. Every export is production-ready.
Bits
A bit is a single 3D mesh — a helmet, a shoulder pad, a jet pack. Every bit snaps to a bone on any Mixamo-compatible skeleton. Mix bits from any source, stack them freely.
Collections
Pre-assembled sets of bits — like "Cyberpunk Hand" covering every finger bone. Drop a collection onto any skeleton instantly. Collections are the fastest way to assemble a full rig.
Avatars
Your full creation. Skeleton plus every bit you've bolted on, exported as a GLB, straight from the browser. No game engine required to build.
Why Atomic Rig
Built for the people who ship.
For avatar creators
- →Export GLBs that work in VRChat, Unity, and Unreal out of the box
- →Mixamo-compatible skeleton — drop it into any project
- →Materials baked into the export — no post-processing needed
For artists & devs
- →Full transform controls: move, rotate, scale per-bit with precision handles
- →Per-material PBR editor — color, metalness, roughness, transparency
- →Non-destructive workflow — nothing is permanent until you export
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Sell what you build
List your bits and collections on the Atomic Rig Marketplace. No storefront to set up, no hosting to wrangle. Build it once, earn every time someone snaps it onto their rig.
Ready to build?
The editor is free and open — no account needed to start. Sign in to save your work and publish to the marketplace.
Open Editor