I've written a crate (https://crates.io/crates/rconvolve) and a little demo using WebAssembly. The demo allows a full workflow of generating a sine sweep, recording that sweep in a room, extracting an IR from the recording, and applying it to your microphone or other input device in real time to see how it sounds. This is my first open source project and I did it just for fun, but I'd love to hear if anyone tries it out. I'm working on a VST plugin based on this crate as well which I plan to open source.