Mockya

Mockya is a browser-based studio that places a screen recording inside a device frame such as an iPhone, iPad, MacBook, Android phone, desktop display or browser window. You drop in an MP4, MOV, WebM or screenshot, pick a device and an angle, choose a backdrop, and adjust the shadow, light and layers before you export. The recording is fitted to each frame automatically, so there is no manual cropping or resizing needed.

You can export the same composition in several social sizes in one pass, including 16:9, 1:1, 4:5, 9:16, 2:1 and 4:3, with each size recomposed for its own frame rather than cropped from the first. Output formats include MP4, WebM, GIF and PNG, and the site states that exports carry no watermark and that files are processed on your own computer rather than uploaded.

The product is aimed at people preparing launch videos, feed posts, stories and Open Graph images for their products, including makers who ship updates often and studios producing client work. Editing and previewing are free, and you pay per export with credits bought once in packs starting at $5, which do not expire.