Octos: Web-based Dynamic Desktop Engine

August 24, 2025 ยท View on GitHub

Octos: Web-based Dynamic Desktop Engine

Create and share live, interactive wallpapers with HTML/CSS/JS for Windows 10 & 11.

Website | Docs | Download

App API Docs

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Demo

Mandelbrot wallpaper

Explore the Mandelbrot fractal on your desktop

Solar system wallpaper

Or view the solar system in real-time

Terrain wallpaper

And even experiment with infinite procedurally-generated terrain

And more community mods are available for download right from the app

Quickstart

Download from the Microsoft Store:

Or download the latest .EXE installer from the releases page:

OctosSetup.exe

Features

Quick and easy customizationCreating your own live, interactive wallpapers has never been easier.
Any and all web technologySupports games, websites, videos, and pretty much any other interactive web-based content for your wallpaper.
Performant and lightweightOptimized for web technologies on the desktop through WebView2. Designed to run smoothly for any machine, from beefed-up PCs to battery-powered laptops.
Powered by the Octos APIAdd music visualizations, media controls, and other native Windows features to your desktop through JavaScript with the Octos API.
Free and open-sourceCommunity contributions are welcome!
Octos CommunityCreate and share your wallpapers for the world to download from the app.
Multi-monitor supportCustomize multiple monitors easily in the Octos app.

Octos Desktop App

Customize your desktop, download community wallpapers, and more, all from the Octos desktop app. Download for free on Windows 10 & 11.

Octos API

Elevate your wallpaper with the Octos API. Access music visualization data, synchronize across monitors and displays, add media controls, and so much more right on your desktop in JavaScript via the Octos API.

Octos Docs

It's super easy to get started making your own wallpapers for Octos. Check out the docs for a quick getting started guide.

Octos Community

Join the Octos community to share your wonderful creations with the world! It's easy to make and share HTML wallpapers with Octos.