Which are the best open source online audio editor apps/libraries? (any in nodeJS?)

Hey there. I was thinking of running an online server application for audio edits or processing and integrate into an app and I wanted to know if there are any good Linux web-server applications that can be run in a web browser? (also open source)

For example a JS/HTML ui with a Python or C++ cli app. Not sure what is needed for good audio processing with compression and equalization and so on. Found a few but they are either only offline browser JS or not for web servers, but rather for Linux desktop.

Any tips are greatly appreciated!