Need to create a webpage that compiles a code [on hold]

So I will try to be as specific as possible. I wrote a compiler with c++ that compiles pascal code. I wrote everything on Visual Studio, and only run it there. Basically, I want to make it an online compiler. I want to make a webpage that gets the input from the users(which in my case would be a pascal code), runs my code, gets the output from my program, and prints it out to the screen. How do I possibly create it? Thank you in advance.