Codepad.org - Test Your Code Online

Codepad is a pastebin that allows you to run and test your code in a variety of programming languages. Just go to codepad.org and enter your code in any of the following languages: C, C++, D, Haskell, OCaml, Perl, Plain Text, Python, Ruby, Scheme, and Tcl. Once you’ve entered your code you then have the option of either pasting and running your code to test it or just pasting it. If any errors are found in the code that you have written, Codepad will point out the error and give you an explanation of what you have done wrong along with the line in which that error occurs. Also, after entering your code, Codepad will create a page where you and others clan go to test and collaborate.

“codepad.org is a pastebin that runs your code for you. codepad works like a compiler or interpreter, not like the read-eval-print loop of an interactive interpreter prompt. If you want to print the value of an expression, you need to use your language's print command. If your language requires a "main" function, your program won't work in codepad without one.”

This is a simple free tool that allows both advanced and beginner-level programmers to test their code. Most appealing is the potential it offers for group collaboration.

Will they be supporting other languages in the future? Will they decide to adopt a business model or continue to provide this great service at no cost?