FBX to VRMA converter: clips for any VRM
Drop a motion clip as .fbx or .glb, a Mixamo download say, and get a .vrma. The motion is retargeted onto the VRM humanoid, so one file plays on every VRM avatar, and you see it on a model before you download.
What comes across, and what cannot
Comes across
- · The body motion, on every humanoid bone the clip drives
- · Finger motion where the clip has it
- · Timing and length of the clip
Does not
- · Root motion that moves the character across the floor: the clip plays in place
- · Bones outside the humanoid: props, tails, extra spine segments
- · Facial animation: a .vrma carries bones and look-at, not shape keys
How to convert FBX to VRMA
- Download the motion from Mixamo as FBX Binary, with or without skin, and drop it here. A GLB with a clip works too. Up to 100 MB.
- The clip is read on our server, retargeted onto the VRM humanoid and written as .vrma.
- Play it on the preview avatar, then download. The files are deleted 3 days later.
Why a Mixamo clip needs converting
A Mixamo clip animates mixamorig bones on one particular skeleton. A VRM has its own humanoid with its own rest pose, so playing the clip directly bends the model wrong. Retargeting reads each bone's rotation in the clip, expresses it on the VRM humanoid, and writes the result as VRMA, the animation format of VRM, which every VRMA-aware app then plays on any avatar.
Character or clip
A Mixamo character download carries a mesh and is a model, not a clip; this page refuses it and points at the model converter. A motion download carries a skeleton and the motion and is what this page wants.
Questions
What files can I drop?
A binary FBX or a GLB that carries an animation clip: Mixamo downloads, exports from Blender or Unity.
Will it play on my avatar?
Yes, on any VRM: the clip is written on the VRM humanoid, so the model does not matter.
Where can I use a .vrma?
VMagicMirror, VRM Posing Desktop, Unity through UniVRM, Blender through the VRM add-on, VRoid Hub, and the viewer and poser on this site.
My Mixamo file is a character, not a motion.
Then it belongs on the FBX to VRM converter; this page takes motion clips.
I want ready-made motions.
Twelve are on the animation library page, free to preview and download.
What happens to my file?
Uploaded, converted, kept 3 days, then deleted.
Need an avatar to play it on?
A rigged model becomes a VRM on the FBX to VRM converter; ready-made clips are on the animation library.