Nemo: open-source motion design and 2D animation

Nemo: motion design and 2D animation, in one app

What it is

An open-source app that puts a full keyframe motion editor and a frame-by-frame vector drawing tool in one document. It is a collaboration: the public repository belongs to Cyril Drouin (mysteropodes) and I am the largest single committer by git history.

What it does

Motion work and drawing share the same timeline. Keyframe, ease, parent, rig and composite like in a motion-design app, and draw frames with automatic inbetweening, without a subscription.

Features

• Keyframe editor with editable easing curves, parenting, 3D layers, mograph and rigging
• GPU effects on a Rust/WebGPU renderer
• Frame-by-frame vector drawing with automatic inbetweening, in the same document
• Runs on the desktop (Tauri) or in the browser at nemomotion.org

Capabilities

Professional-style motion graphics and 2D animation for students, independent animators and small studios who cannot justify a subscription.

Compatibility

• Browser: needs WebGPU (recent Chrome, Edge or Safari 26+)
• Desktop: Tauri v2, built from source; packaged releases not published yet

Availability

Open source under GPL-3.0, alpha (0.7.0-alpha line, tag v0.7.0-alpha.4). Try it at nemomotion.org.

Under the hood

Paper.js holds the document model; a stateless Rust/WebGPU renderer built on vello draws it; plain JavaScript UI with no bundler; Tauri v2 for the desktop shell.