Youtube-editor -

For monetized channels, the editor allows for the adjustment of ad breaks.

Features include "Face blur," which automatically detects and blurs faces, and "Custom blur" for obscuring specific objects, faces, or sensitive information.

It is best used for "emergency surgery" on published content to avoid having to delete and re-upload the video.

The YouTube Studio Editor is a built-in, browser-based tool designed primarily for making post-upload corrections to videos without losing view counts, comments, or changing the URL . While not a replacement for professional software, it offers essential, free, and permanent editing capabilities, including trimming, blurring, and audio enhancements.