Mesh over art
Auto mesh follows the outline. Points slide over the art instead of stretching it. Lasso, copy and paste points, glue meshes with a weight brush. Re-import the PSD later and the new art lands on the rig you already made.
Mesh editingAyatsuri2D is a rigging editor for Live2D-style models. Layers become meshes, deformers bend them, parameters and physics move them. Windows, macOS, Linux. No account.

Model art by マパ*MAPA, used with permission.
Hover or tap a panel, or pick one:
Auto mesh follows the outline. Points slide over the art instead of stretching it. Lasso, copy and paste points, glue meshes with a weight brush. Re-import the PSD later and the new art lands on the rig you already made.
Mesh editing
Warp deformers with a grid, a transform box and Bezier handles that stay where you put them. Rotation deformers with a real pivot. Four-corner forms, motion mirroring, Reflect, parameter folders and 2D pads.
Deformers
Scenes with smooth, linear, stepped and Bezier keys, events and fades. Expressions with Add, Multiply and Overwrite. motion3 and exp3 in and out, key for key.
Animation
psd, kra, moc3, cmo3 soon, physics3, motion3, exp3, cdi3, aom
moc3 3.0 to 5.3, checked against real Cubism exports; 5.0 by default because VTube Studio opens that today
Cubism Editor's integration API on a port you choose, so apps built for it connect unchanged
Every offset and index in a model file is checked before anything uses it. The CVE-2023-27566 model that lets a .moc3 write memory is rejected in the test suite. A crash still undoes the edit it interrupted, saves a recovery copy, and offers it back on the next start.
Allocation happens at load; the frame loop allocates nothing.
Usable for real rigging today. Save often, keep backups, report what breaks. GPL-3.0; your models are yours. Six languages: English, 日本語, 한국어, 简体中文, Nederlands, Afrikaans.