I use Grammarly for online proofreading because I want to become a better writer!
Today I would like to recommened a program for all you writers out there - Grammarly. I have been given the opportunity to test the program for 30 days, and so far I have found it very helpful. For instance, it has given me a deeper understand of how punctuation is used in English, but it also opened my eyes for other things that I wasn't aware of before. This was a good supplement for me who usually don't write in English. Use it as a complement before you move on to beta-readers and editors.