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GSAP vs Motion One
GSAP vs Motion One: power vs lightweight web animation
GSAP is the full-featured timeline powerhouse. Motion One is a tiny library built on the native Web Animations API. Here's the trade between capability and size.
Updated June 2026 · Written by Shaheer Malik, who ships in both
Quick answer
Motion One is a tiny web-animation library built on the native Web Animations API — ideal when bundle size and performance matter and the motion is fairly simple. GSAP is the full-featured engine with best-in-class timelines, scroll tooling and plugins. Choose Motion One to stay lean; choose GSAP when you need complex sequencing or scroll-driven animation.
Motion One (from the maker of Framer Motion, at motion.dev) is a lightweight animation library built on the browser's native Web Animations API, so it stays tiny and hardware-accelerated. GSAP is the mature, full-featured engine with timelines, plugins and unmatched scroll tooling.
The decision is essentially capability vs bundle size — and, since GSAP went free in 2025, no longer about cost.
| Dimension |  GSAP |  Motion One |
|---|---|---|
| Bundle size | Larger (full engine) | Tiny (a few KB) |
| Underlying tech | Custom engine | Native Web Animations API |
| Timelines & sequencing | Best-in-class | Basic |
| Scroll animation | ScrollTrigger — deep | Scroll support, simpler |
| Plugins & ecosystem | Huge | Minimal by design |
| Performance (simple anims) | Excellent | Excellent, hardware-accelerated |
| Best for | Complex, scroll-heavy work | Lean sites, simple UI motion |
Choose GSAP if…
- You need complex timelines or scroll storytelling
- You'll use plugins (SplitText, MorphSVG, etc.)
- Capability matters more than a few KB
- You want one tool for everything animation
Choose Motion One if…
- Bundle size and performance budget are tight
- Your animations are mostly simple UI transitions
- You want a modern API on native browser tech
- You don't need timelines or heavy plugins
The honest verdict
Motion One is the right call when you want modern, performant animation with the smallest possible footprint — lean marketing sites and simple UI motion where every kilobyte counts. Built on the Web Animations API, it's fast and future-friendly.
GSAP wins the moment you need real timelines, scrubbed scroll sequences or its plugin ecosystem. Now that it's free, there's no cost reason to avoid it; choose Motion One for lightness, GSAP for power.
Common questions
GSAP vs Motion One, answered
Yes, significantly — Motion One is only a few kilobytes because it leans on the browser's native Web Animations API, while GSAP ships a full custom engine. For tight performance budgets, Motion One is the lighter choice.
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