How do I edit videos right in my browser?
To edit a video without waiting a long time to download it, you can use the WeVideo service.
It's a cloud-based online video editing platform that works in browsers and on mobile devices (Android and iOS), and offers the use of more than 1 million stock media files, including video, images and music.
Sure, it's inferior in some places to professional video editors, but the functionality is quite decent (especially when you consider that WeVideo is free to use)