The best alternatives to Theatre.js are IconScout, Previewed, and Webydo. If these 3 options don't work for you, we've listed a few more alternatives below.
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IconScout is a design resources marketplace for icons, illustrations, 3D assets and Lottie animations. Powered by a community of passionate designers, IconScout is the simplest way to sell, share & exchange design assets to a worldwide audience.
Previewed is a mockup generator, which is used by devs & designers to create beautiful promotional graphics for your app. Browse a variety of templates, pick one, customize it in a few clicks & download your pixel perfect design.
Mockup Photos collects high quality mockup images from around the world. Use Mockup Photos to generate app screenshots in seconds. Choose between 1000s of images created by individual creators
Artefactory: The Future of 3D Design. We're your subscription-based solution for unlimited 3D creativity, top-tier quality, and lightning-fast results. Your brand's standout visual identity starts here.