There are many free tools on the net, but many of them contain an annoying amount of clutter in terms of advertising or promotion of other sites etc - the purpose of this site is to provide a few tools completely free of any fuss or advertising.
If anyone finds these apps useful and wants to throw some Doge or whatever my way via the Support / Donate link at the bottom of each page that's great, but it's absolutely not required to make use of the apps.