I play Minecraft often times while travelling (with a laptop), and enjoy messing around with command blocks. However, I can never seem to remember all those commands and their syntaxes and strings and such, and resort to using online generators for my commands. They are far easier, but hard to use on my phone (as my laptop doesn't have any sort of connection while travelling). I'm wondering if there is any OFFLINE program available for these command generators, and where I could get the application for my laptop.
Any other suggestions on how to solve my problem are welcome, thanks.