As described by YouTube, the Video Editor lets you:
- Combine multiple videos you’ve uploaded to create a new longer video
- Trim at the beginning and / or ending of your videos
- Add a soundtrack from our AudioSwap library
- Create new videos without worrying about file formats, and publish the new video to YouTube with one click (no new upload is required)
To dive right in and start playing around with the Video Editor, head directly over to the editor page.