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YouTube Lecture & Course Downloader

Download YouTube lectures and online course videos to study anywhere — offline, free.

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No sign-up · No software · Works on all devices

Some of the best educational content in the world lives on YouTube — university lectures, professional courses, language lessons, coding tutorials, science explainers, and everything in between. YT1Z lets you download any YouTube lecture or course video as an MP4 or MP3, so you can study offline at your own pace, on your own schedule.

For video lectures, we support HD (720p) and Full HD (1080p) downloads up to 3 hours, and 4K up to 1 hour — ideal for slide-heavy presentations where you need to read every detail. For audio-focused lectures or long course series, choose MP3 extraction, which supports up to 20 hours of content — enough for the longest semester recording.

Take your lectures on a flight, to the library, on a commute — no internet connection required. The content downloads to your device as a standard file you can watch or listen to in any player, at any speed, paused and rewound as many times as you need.

Why Use YT1Z for This?

Video up to 3 Hours

Full HD lecture recordings, complete course modules, and extended tutorial series all download without any length cap.

Audio up to 20 Hours

Download lecture series as MP3 audio and listen on the go — commute, exercise, or any situation where a screen isn't practical.

Study Without a Signal

Download on Wi-Fi and study anywhere — planes, trains, remote areas, anywhere your internet is unreliable or expensive.

Any Subject, Any Platform

MIT OpenCourseWare, Khan Academy, Coursera previews, independent educators — if it's a YouTube URL, YT1Z downloads it.

How to Use It — 4 Simple Steps

1

Find your lecture on YouTube

Locate the lecture, tutorial, or course video you want to study offline. Copy its YouTube URL.

2

Paste on YT1Z.top

Go to YT1Z and paste the URL. Choose MP4 if you need to see slides, or MP3 for audio-only lectures.

3

Select quality and download

For MP4 choose HD or 1080p. For MP3 just hit Download — YT1Z uses the best audio quality available.

4

Study offline

Your lecture file saves to your device. Pause, rewind, and replay as many times as you need — no internet required.

Ready to Download?

No account, no limits, no waiting. Paste a link and your file is ready in seconds.

Watch Lectures Offline