NaViA is a web tool created to augmend the analysis of complex mass spectra obtained from native mass spectrometry.
It is currently in beta stage. Visit https://d-que.github.io/navia/ for trying it out. Some sample data can be found in apo.txt. Generally, it uses CSV files in a format of "mz - Intensity" as an input.
An introduction and guides through different NaViA functions can be found on youtube (click the image below).
The NaViA fileformat is is described here