The Wavacity project by Adam Hilss is a fork of the original Audacity. It looks and feels just like an older version of Audacity (specifically, 3.0.0). But the trick here is that he’s managed to get it working with WebAssembly (WASM) so you can run it in your browser. Impressively, it even works on mobile devices. Though the Audacity UI, which already carries the sort of baggage you’d expect from a program that’s more than 20 years old, is hardly suited to a touch screen.
The linked article contains a link to open the app in your browser. It will also open in a mobile browser, but the interface is not optimised for touch. The links to his other projects, will also take you to his GitHub project page, where the source code for this project can also be found.
See https://hackaday.com/2023/10/05/audacity-runs-surprisingly-well-in-your-browser/