Twelve open-source motion libraries as a code-first After Effects alternative

makiris @makirissOriginally posted 2026.10.25

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this is straight up f*cking gold 12 open-source GitHub repos stacked into one After Effects killer. 4 tracks, ~450K stars combined, all of them run as code Claude Code can write: track 01 · timing: > juliangarnier/anime: one small API for CSS, SVG, DOM attributes and plain JS objects http://github.com/juliangarnier/anime > motiondivision/motion: springs and gestures, JS tweens running on native browser APIs http://github.com/motiondivision/motion > greensock/GSAP: timelines, scroll, SVG, canvas, WebGL. free license, just not MIT http://github.com/greensock/GSAP track 02 · keyframes: > airbnb/lottie-web: After Effects exports played natively on web, iOS and Android http://github.com/airbnb/lottie-web > theatre-js/theatre: keyframe editor in the browser for three.js, HTML and SVG http://github.com/theatre-js/theatre > mojs/mojs: bursts, swirls, shapes and staggers for UI motion http://github.com/mojs/mojs track 03 · video in code: > heygen-com/hyperframes: write HTML, render video. ships its own skills for Claude Code, 47K stars since March http://github.com/heygen-com/hyperframes > remotion-dev/remotion: videos as React components. some companies need a paid license http://github.com/remotion-dev/remotion > motion-canvas/motion-canvas: TypeScript generators + live preview, built to sync with voiceover http://github.com/motion-canvas/motion-canvas track 04 · explain & export: > 3b1b/manim: the engine behind 3Blue1Brown’s math videos http://github.com/3b1b/manim > mifi/editly: one JSON spec in, cuts + transitions + titles out http://github.com/mifi/editly > FFmpeg/FFmpeg: encode, cut, mux, scale. every pipeline here ends in it http://github.com/FFmpeg/FFmpeg start on track 01. nobody fixes bad timing in FFmpeg

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