With the Spirit runtime you can play your created animations on your web page. It interprets the animation data and gives you a simple javascript API to play/control your animations.


Spirit runtime uses GSAP for animation playback. GSAP does a great job on cross-browser support and performance. Besides, it has a bunch of helpful plugins, which makes animating a lot easier.

The runtime player is open source and can be found on Github

Other Runtimes

While GSAP is currently the only runtime available, there are other implementations in development. An important one is the native Web Animations API.

Have a runtime in mind that Spirit needs to support? Or you cannot wait to collaborate? Please drop me a mail at

Work in progress!

More detailed documentation is coming soon

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