What is a spell / grammar checker?

Computer software that identifies misspellings and grammar check by reference to a dictionary has been incorporated. There is a list of rules for proper uses. They are part of content-processing programs. Spell Check can't identify spelling errors that result in another legitimate word, and are hard to use on documents that contain many words not entered the incorporated dictionary. The reliance on oversimplified rules of a grammar checker has been criticized.

To overcome grammar error problems, we need a tool which helps to find mistakes and correct them automatically. So, we can try online grammar checker tool.