Hey Product Hunt! I built Keyframe.it because 2D skeletal animation tooling has been desktop-only and paywalled for a decade, while the runtimes it feeds (PixiJS, web game engines) live in the browser. It felt wrong that you needed a license and an install to make an animation. So: the whole pipeline in a browser tab. Rig with bones, weight meshes, keyframe on a dope sheet, add spring physics, and export bundles that load straight into pixiJS - or GIF/video if you just want the motion. Everything autosaves locally; there's no account and nothing gets uploaded. Its also agent ready, so your favorite model can interact with the app. Two things I'm particularly proud of: Canvas → export fidelity is enforced by an automated parity suite that compares every frame of every animation against the official Spine runtime in CI. The editor has a scripting API (window.keyframe, 150+ methods) — AI coding agents can rig and animate in it autonomously. Docs: keyframe.it.com/llms.txt The demo link opens a real production rig you can edit immediately. I'd love to hear what breaks, what's missing, and what you'd animate with it. I'll be here all day!

Keyframe.it.com

Free 2D skeletal animation editor in your browser

Free 2D skeletal animation editor in your browser