# Do Not Use SaaSS Service as a Software Substitute (SaaSS) basically means outsourcing computing. It is something like a "Web app", but those are not exactly the same. Because a web app can be just a software that runs on a web browser without the server side. Editing files (texts, images, videos, &c.), translating texts, and calculating equations on a website are SaaSS. Posting on a website and using a search engine are not. The problem is that it makes a blackbox. Or I could say, a backdoor. It is worse than proprietary software. Even if the client side is free, you can't see what's really going on the server side. It doesn't matter if they say it's libre. You can't be certain that the server actually uses the free software. Also there is not an executable file so that if the server closes, you can't use it anymore. On the other hand, you can RUN a proprietary software at least. So how to examine a program on a website is SaaSS or not? It is easy. Just download the webpage and try to run on your web browser without the internet connection. If it works, use it that way. If it doesn't work, it is a SaaSS. So try to find an alternative. I recommend to just install a software on your computer because JS sucks anyway. And you can use it without opening a web browser.