Do you want test a short Pascal snippet and you don’t have a compiler? try the site called ideone.
What is ideone?
Ideone is something more than a pastebin; it’s an online compiler and debugging tool which allows
to compile and run code online in more than 40 programming languages.
This site currently supports these two Pascal compilers
fpc (Free Pascal Compiler) 2.2.0 (Target OS: Linux for i386)
gpc (GNU Pascal Compiler) 20070904
for the limitations about the code submitted and others check the FAQ.
The Road to Delphi 
March 8, 2011 at 8:53 am
excellent website. thanks
March 8, 2011 at 10:24 am
wow, really usefull to test a small code when you don’t have the compiler installed.
March 15, 2011 at 7:37 am
Nice tool thanks. You can use Ideone also with Android mobile devices (through IdeDroid)
June 19, 2014 at 5:53 pm
Sounds interesting. Thanks!