Sandbox · no sign-up
The real app and its API, on Postgres compiled to WebAssembly, with a company's worth of example data. Everything runs in this tab. Nothing you do is sent anywhere.
Still going. On a slower machine this can take up to a minute.
Sorry, the sandbox didn't start in this browser. It works in current Chrome, Edge, Safari and Firefox on a laptop.
Sandbox · no sign-up
The sandbox runs the whole CourageMFG app, with its database, inside your browser. That's about 6 MB to download and a few seconds of work, and the screens are made for a bigger display.