There's spring4d, though I haven't used it, though have used parts of it. I've developed a number of servers in delphi for windows, they're as performant as C#

There's spring4d, though I haven't used it, though have used parts of it. I've developed a number of servers in delphi for windows, they're as performant as C# services (which I've also developed, there's very little difference). I've developed TCP/IP server, SOAP server, and REST servers talking to a few databases and remote servers. There is no limit to what you can develop in it, since you have access to the Windows API's just like any C application. > But something like the Spring framework for Java or ASP.NET for .NET, or even Ruby on Rails or Django for Python You've outlined a number of different things there and you could make your own with delphi, since again its just like C as to what it can do. You could, if you wanted, make a Django for delphi, though it's not something I'd do. Though your initial statement was Delphi couldn't do a lot of modern services either server or client. This isn't true. If it's all these other things, well, thats a matter of opinion, but there's no technical limitation with Delphi as far as protocols go. Edit: There's this to which is interesting - a drag and drop web development set of components for SPA's https://www.tmssoftware.com/site/tmswebcore.asp https://www.tmssoftware.com/site/tmswebcore.asp which doesn't exist in other environments afaik. Though not sure I'd use it, I know of people who have and it works fine.