SEO-ready description with timestamps — 100% free, runs in your browser
The description is where YouTube learns what your video is about, and where viewers find your links. Timestamps matter more than most creators realise — they create chapter markers, which improve retention and can surface your video for specific queries.
Very. They generate chapters, help viewers find what they came for, and can make individual sections appear in search.
Three is the practical limit — YouTube displays only the first three above the title.
Longer descriptions give YouTube more context, but only if the words are relevant. Padding does nothing.