I'm not a native English speaker and I have always doubts about whether my English text is grammatically correct or not. I've searched for online grammar checker websites but I can't find a fully intelligent website. Also I've tried Google translation service but it won't help me too.

Now my question is:
Would it be OK to share my some English texts in this website and ask for grammar checking? But seems here is not the place I'm looking for, If so, where can I do this?

Thanks in advance