SponsorBlock

SponsorBlock automatically skips sponsor segments, intros, outros, and other non-content sections in YouTube videos. It's a browser extension powered by a crowdsourced database: users mark sponsor segments, and everyone else's player skips them automatically. GPL v3. Covers more than just sponsors: intros, outros, "subscribe" reminders, non-music sections of music videos, filler, and previews. The community database has hundreds of millions of submitted segments. Works on YouTube in Chrome, Firefox, and Safari, plus third-party integrations in apps like NewPipe and Invidious.

Fully free. No paid tier. Community-driven and donation-supported.

Install the extension, watch a video, sponsor segments skip automatically. That's it. You can also submit segments yourself when they're missing.

The catch: it depends on the community submitting segments. Popular videos get covered quickly. Obscure videos might not have segments marked yet. YouTube could also break the extension with player changes (it's happened before and been fixed quickly). And some creators argue this hurts their sponsorship revenue. Fair point, and you should decide where you stand on that. The tool works. Whether you should use it is a personal call.