Can anybody recommend good editing software?
I'm both dyslexic and currently using open office, this combination of poor spelling skills and even poorer spell checker on my current software is making it really difficult to get my writing into a suitable state to post. As an example this post took me far to long to complete because the spell checker on Royalroad couldn't fix "tital" to title.
Beyond this the grammar checker on open office simply does not exist.
Others have mentioned using Grammarly. You can try out ProWritingAid as it is a bit more comprehensive. I also recommend investing in a good text-to-speech software. There are a few things that a grammar checker will not pick up. In fact, I find text-to-speech a lot more helpful than a grammar checker.
I currently use ReadAloud.