If you’ve ever uploaded a video and then spotted a clunky intro, a long pause, or a face you forgot to blur, you’ve probably wondered how to edit YouTube videos without re-uploading the whole thing. Good news: YouTube has a built-in editor, and for quick fixes, it’s all you need. Quick answer: YouTube Studio has a basic built-in editor that lets you trim, cut, blur, and add audio to videos directly in your browser, even after they’re live, and without re-uploading.