I don't post my seed at anyplace I have it on paper writed by hand, I'm totally noob programing I do it correcting what a AI do for me.
There're tools that can help you with that. But some tips:
1. NEVER use a script that sends your seed to some web page. THEY CAN STEAL YOUR FOUNDS!
2. Don't try to program anything if you don't know how to.
3. Don't use code generated by an IA. Just look for some tools already done.