Find and replace for YouTube Subtitles is a free app that enables you to quickly and easily edit the subtitles of YouTube videos. It offers you the possibility to add or remove misspelled words and expressions for each subtitle. The app also lets you add your own list of misspelled words that must be replaced in your video. Once you add them to the app, you can fix all misspelled words and expressions right from the online YouTube editor with a single click. It offers you the possibility to change the font and size of all text in your video and process them all with one click. Please remember that is an extension that works only when you are on the official online YouTube subtitle editor website.