Online code execution

"Online code execution" is commonly implemented as a webpage with a text-area for writing/pasting code, a button "Submit/Execute", and an output-page to show the result.
That means, usually no graphics or GUI.

Online-code-execution allows for a quick test of (short) programs/scripts, without the need to install something on the own machine.

This are some known websites that allow online code execution:

• Lua-demo : just Lua, with some canned demo-programs.
• CodePad.org : C C++ D Haskell Lua OCaml PHP Perl Python Ruby Scheme Tcl

This can also be used to share/discuss code, much like PasteBin.com.

• CompileOnline.com : lots of programming-languages
• ideone.com : Online-Compiler

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