Offline-first

Runs on your machine, not mine.

A collection of browser projects — simulations, renderers, games — that live in a folder on your computer. Download once and they work with no connection at all. Nothing here runs on this site; you take it with you.

What happens next

1. Extract the zip. It creates a folder called ExecurHub. Put it wherever you keep things — the folder is self-contained and can be moved later.
2. Open index.html inside it. That's the only file at the top level, so there is nothing to work out. It opens in your browser and runs locally.
3. Install what you want. The hub lists every project with its size. The first install asks you to point it at the ExecurHub folder — your browser requires that, and it only asks once. Each project then lands in ExecurHub/projects/.
4. Come back for updates from inside the hub. It has a button that checks this server and offers anything newer. You don't need this page again.

What you need

Browser

Chrome, Edge, or a Chromebook. Firefox and Safari can open projects but can't install them — they lack the folder access this uses.

Connection

Only to download, and to install or update projects later. Everything already installed runs entirely offline.

Graphics

Some projects need WebGPU. The hub tells you which, and whether your machine has it, before you download them.

Disk

The hub itself is tiny. Projects vary; each one shows its size.