Free Stand Alone LSL Editor & Help Files
Alphons van der Heijden has written an LSL editor that you can use from your desktop without having to be connected to Second Life to write, test, and compile your coding.
Haven’t used it a great deal yet, but it seems to work very well on the few things I’ve tried it on. Also recommended is downloading the help files (LSLEditorHelp.chm) that come with it, as it contains pretty much the whole of the LSL Wiki plus a bunch of other stuff including a library of open source ready written programs for you to use for your own purposes.
We salute you Alphons.