Hi everyone, I'm Harshit.

I learn a lot from YouTube, and I kept losing time on long tutorials and talks where I already knew half the material. Skipping ahead felt risky, because I might miss the one part I needed.

So I built QuizFirst. Before you watch, it gives you the option to take a short quiz on the video. Each question maps to a part of it. Answer correctly and that part is marked as one you can skip. Get it wrong and it shows you the exact part to watch. The explanations point to the moment in the video ("at 2:22"), so you can check the answer yourself instead of trusting it.

It works from the video's captions. It uses the creator's English captions when there are any and YouTube's auto-generated ones otherwise. It's free.

What I'd love feedback on:

Is the quiz quick enough to be worth it before a video, or does it get in the way?
Did it ever tell you to skip something you needed? A link to that video would help a lot.
Early users asked for an "I guessed" option, so a lucky correct answer doesn't count as knowing it. Would you use that?

I'll try to reply to each and every comment. Thanks for taking a look.