This is a very simple addon that mimics a macro you can make yourself. Instead, you type "/t hello" or "/t nokill" (from the presets) etc. and it 'converts' it so that Alliance can read what you're saying. The translation is really limited so you can only choose from a few presets. You can easily add your own presets by editing the lua file, just add a new elseif statement with your command and translation gibberish. Try https://f00l.de/wowtranslator.php for translations. How to use this addon:
1. Type "/t help" for a full list of my presets.
2. Type "/t hello" or one of the other preset commands.
The addon tells you what you said (translated) and sends the message through local chat.
I made this addon as an intro to lua, I use it everytime I play so I thought I'd share it. Alliance to Horde not yet added by myself.