A web-based motion design tool, Jitter supports collaborative animation creation and includes AI features.
Theatre.js
Create and edit animations in Theatre.js using its visual motion design interface and JavaScript animation library.
About Theatre.js
Theatre.js is a JavaScript animation library with a visual motion design toolset that runs in the browser. It animates by changing JavaScript variables, so output depends on how those variables are used. The site says it works with any front-end library or framework, including custom THREE.js and WebGPU setups.
Pricing is not clearly stated.
Key features
- Sequence editor to block out sequences
- Dope sheet for timing
- Graph editor for frame-by-frame fine-tuning
- Easing presets for adjustments
- Outline and property editor for values
- Extensions for custom UI, tools and workflows
Theatre.js at a glance
- Website
- theatrejs.com
- Category
- Design & Creative › 3D, CAD & Motion
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Theatre.js alternatives
Tools and sites you could use instead, ranked by how closely they match.
For canvas and SVG, Zdog provides a small JavaScript pseudo-3D engine to design and render simple 3D models.
Bloom3D enables browser-based creation of 3D environments and designs, and requires WebGL2 for its graphics interface.
Popular in 3D, CAD & Motion
Well-known listings from the same topic.
NASA 3D Resourcesscience.nasa.gov/3d-resourcesDesignConnecteddesignconnected.comAwesome Blenderawesome-blender.netlify.appWavelrywavelry.vercel.appJerrari Designjerrari3d.comAssemblrassemblrworld.com
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.