Online Commander Alternatives
Commander is not available as a web app but there is one alternative that runs in the browser with similar functionality. The most popular Online alternative is 
muCommander, which is both free and Open Source. If that doesn't work for you, our users have ranked more than 50 alternatives to Commander, but unfortunately only one is available as a web app.
- muCommander is a lightweight, cross-platform file manager with a dual-pane interface. It runs on any operating system with Java support (Mac OS X, Windows, Linux, *BSD, Solaris...). View 90 alternatives to muCommander