Autocorrect is currently available in the Grammarly browser extension for Chrome. Unfortunately, we don’t offer this feature in other browsers yet.
You can enable or disable autocorrect by clicking the green G icon in your browser’s toolbar and toggling the switch next to Correct spelling automatically:
Once Grammarly has corrected a certain word, you will see a gray dotted line under it. To see what changed, hover over the word in question: