Credits & Licences

JUMI Ad Animator is built with open-source software, used under permissive licences. With gratitude to the authors.

Open-source software

• gifenc (MIT): Animated GIF encoding. © Matt DesLauriers. github.com/mattdesl/gifenc
• mp4-muxer (MIT): MP4 muxing for video export (paired with the browser’s WebCodecs encoder). © Vanilagy. github.com/Vanilagy/mp4-muxer
• Lucide (ISC): Icon set used in the interface and the in-editor icon library. © Lucide Contributors. lucide.dev
• Nunito (SIL OFL 1.1): Typeface, served via Google Fonts. © The Nunito Project Authors. fonts.google.com

File formats

Import: you can add images in PNG, JPG/JPEG, SVG, WebP and GIF. Transparency in PNG/WebP/SVG is preserved while editing.

Export: your ads can be saved as:

• HTML5 Banner: a self-contained ZIP package (index.html + assets) accepted by Google Ad Manager, DoubleClick, and most modern ad servers.
• Animated GIF: universal display-network format.
• MP4 video (H.264): for social feeds.
• Animated WebP: smaller, 24-bit colour, for the web.
• Static PNG and Static JPG: single-frame images.

Projects are saved as a portable .jumi.json file. Fonts can also be drawn from those installed on your own computer via the browser’s Local Font Access API. HTML5 exports embed fonts via the Google Fonts API at runtime.