Generate & customize beautiful mesh gradients
Generate & customizse beautiful and colorful mesh gradients. Download Mesh Gradients & Export in PNG
Creattie - Premium Lottie Animations & Animated Icons
Creattie is a curated library of Lottie animations and animated icons created by award-winning artists.
Mockup World | The best free Mockups from the Web
挺不错的，全是免费的，我记得都是连接到behance过去下载了。
iPhone Archives - Lovely Mockups
感觉不错，部分免费。
0617 下载了真实场景的样机
The Mockup Club – Best Free Mockups
Cleanmock — Mockup your designs simply and beautifully.
直接上传图片，选择各种场景，有 web/apple/安卓/app store/dribbble 等
Previewed - Free mockup generator for your app
似乎每周免费可以导出一次，看着质量还行。但是试着导出一个视频花了很久的时间。
Free Long Scroll iPhone X Mockup | ls.graphics
长长尾部褶皱的样机
Morflax - 最简单的在线三维设计平台
可以生成一些免费的样机，还有适合服装公司的 3D 人物模型
Angle 3 - 3100 Device Mockups for Figma, Sketch and XD