Is this tied to one store?
No. This page is intentionally generic and is meant for alternative Android stores or third-party app marketplaces that do not fit a more specific store flow.
Can I still switch the canvas and pacing?
Yes. The page opens with a generic app launch setup, but the same arrange, canvas, pacing, and export controls remain available.
Does export remain local-only?
Yes. Preview and export stay on the device in the browser, without server-side video rendering.
Which alternative app stores accept a video?
It varies. Huawei AppGallery and the Amazon Appstore accept an uploaded file, Samsung's Seller Portal generally expects a hosted link, and some smaller stores support no video at all. Check the console before you render.
What size should I render at?
1080 x 1920 vertical covers most Android phone stores and is the default here. 1920 x 1080 landscape covers desktop and TV surfaces. Rendering both gives you a set that fits nearly everywhere.
Does the video have audio?
No. The renderer produces a video track only, so if a store expects a real trailer, add a track in a separate editor before uploading.
MP4 or WebM?
MP4 with H.264, which is what almost every store expects. This tool produces it where the browser exposes WebCodecs. If you get WebM, you are on the fallback path, so re-export in a Chromium browser.
Does the render happen locally?
Yes. Frames are drawn on a canvas and encoded in the browser, which matters for a build you have not shipped yet.