# Formats, sizes & weight

> GIF by default, WebP alongside when you want it, MP4 on request; dimensions per design; keeping file size email-friendly.

Section: Designs & data · HTML: https://app.multiplied.studio/docs/designs/formats-sizes-and-weight · Index: https://app.multiplied.studio/llms.txt

_This page is a structure-only placeholder: the Studio UI it describes is being redesigned, so step text and screenshots land with the new UI._

## Formats

- **GIF** — the default and the format email clients agree on.
- **WebP** — optional second output at the same URL with a `.webp` extension, for web pages and clients that support it.
- **MP4** — on request, for channels that play video.

## Dimensions

Set by the design: portrait 4:5, wide, or ticker. The quote shows the exact pixel size.

## Weight

The preview shows the real size of your samples. Shorter loops, fewer colours and smaller dimensions all reduce weight; ask us if a design needs to come in under a target.