On: .NET Fiddle adds F#

[physicslover]

I would like to see an interactive loop to fsi. Seems like you could use websockets for this.

[latkin → physicslover]

Another option you might want to look at is http://www.tryfsharp.org/Create Runs code locally via Silverlight.

[AltGr → physicslover]

F#'s big brother, OCaml, has this: http://try.ocamlpro.com The best part is that since OCaml can compile to JS, it's completely offline !

[refactormonkey → physicslover]

Yeah, we are looking into it. Interactive provides great information to see what is really going on.