If this doesn't work for you, or fails to work on a particular language, let me know, and I'll try to fix it. ( It may just be a case of installing the appropriate syntax-highlighting package ).

Note that I don't store the files uploaded here, or even record their names (unless you check the 'keep' box above) - the data persists for a few seconds on the end of a file handle, but then it's gone.

If you do tick the 'keep' box, I keep the file and the html output, which I will then use to hound you to the very gates of hell, Buahahahaha. [ Or possibly just debug this script, it's all good. ]