SpeedClip

SpeedClip targets the very common frustration of scrubbing through a long YouTube video trying to find the part that matters. Rather than manually fast-forwarding, overshooting, and rewinding, the extension analyzes the video's subtitle track to identify the key segments, paints them onto the player timeline, and lets you hop from one to the next with a single click.

As you land on each highlighted segment, SpeedClip displays a short AI-generated summary on the video itself, so you can quickly judge whether the section is worth watching in full. This makes it useful for lectures, interviews, podcasts, and any long-form content where you want the substance without the full runtime.

The extension is deliberately lightweight: it is free, carries no subscription or hidden fees, and the AI processing runs through your own personal OpenAI account and API key. You install it, paste your OpenAI key into the settings page, and start browsing. One limitation to know is that SpeedClip currently relies on subtitles, so videos without captions are not supported.