Copy the YouTube URL
Go to YouTube, open the video you want, and copy its URL from the address bar or the Share button. You can also just note the video title to search instead.
Free · Unlimited · No Sign-Up
Download YouTube Videos
Free, Fast & in Full HD
MP4 up to 4K · MP3 up to 20 hours · ASMR & Podcasts supported
Paste any YouTube link — or search by keyword — and download your video or audio in seconds. No account, no software, no limits. Works on any device.
1200Websites supported
4KMax Video Quality
20hMax MP3 Length
100%Free Forever
Safe & Secure
No Registration
Instant Download
Unlimited Downloads
Works on All Devices
Why YT1Z?
Everything You Need to Download YouTube Videos
Built for speed, quality, and simplicity. No bloat, no subscriptions, just downloads.
HD, Full HD & True 4K Downloads
Download YouTube videos in 720p, 1080p, or stunning 4K (2160p) resolution. 4K supported for videos up to 1 hour; HD/FHD for videos up to 3 hours.
YouTube to MP3 – Up to 20 Hours
Extract audio from any YouTube video as high-quality MP3. Perfect for ASMR, podcasts, music, meditation, lectures, and audiobooks up to 20 hours long.
Instant Processing
No waiting in a queue. YT1Z fetches and processes your download in real time, so your file is ready within seconds of hitting the button.
Truly Unlimited Downloads
No daily caps, no rate limits, no premium tiers. Download as many videos as you need, whenever you want — completely free.
Works on Any Device
Desktop, laptop, tablet, or smartphone — YT1Z runs in your browser with zero installation. Chrome, Firefox, Safari, and Edge all fully supported.
Built-In YouTube Search
Don't have the URL? Search YouTube directly from our page. Type keywords, get up to 20 video results, and download any of them instantly.
Safe, Private & No Sign-Up
We never store your videos or search history. No email, no account, no tracking. Just paste and download with complete privacy.
Available in 20 Languages
YT1Z is fully localized in 20 languages including Spanish, French, German, Arabic, Hindi, Japanese, Chinese, and more. Pick yours from the top menu.
Long-Form Content Champion
Designed from the ground up for marathon content: 3-hour lectures, full concert recordings, 8-hour sleep music, and 20-hour ASMR compilations all download perfectly.
4K & HD Video Download
MP4 up to 3 hrs · 4K up to 1 hr
YouTube to MP3 Converter
High-quality audio extraction
ASMR & Podcasts Supported
MP3 audio downloads up to 20 hours
Works on Any Device
Desktop · tablet · smartphone
Get Started
Download Any YouTube Video in 4 Simple Steps
No technical knowledge required. If you can paste a link, you can use YT1Z.
Paste URL or Search
Paste the link into the box at the top of the page and hit Download. Or switch to Search mode, type your keywords, and pick from up to 20 video results.
Choose Your Format
Select MP4 HD, MP4 1080p, MP4 4K, or MP3 audio. Multiple quality options are shown so you can balance file size and quality.
Save to Your Device
Hit the final Download button and your file saves directly to your device — phone, tablet, or computer. No waiting, no emails, no fuss. Done!
Browser Power-Up
Download Videos From Any Website — One Click
Add our bookmarklet to your browser bar and download or search from anywhere on the web, without coming back to YT1Z first.
Download the Page You're On
Browsing YouTube and spot a video you want? Click the bookmarklet — it instantly opens YT1Z with that page's URL ready to download. No copying, no pasting, no tab switching.
Search From Any Page
Reading an article and want to find a related YouTube video? Select any text on the page — a song title, a topic, an artist name — then click the bookmarklet. YT1Z searches YouTube for it instantly.
Drag this button to your browser's bookmarks bar — then click it on any page to download that video or search for selected text on YouTube.
YT1Z — Download & SearchOn mobile? Bookmark any page first, then edit that bookmark and replace the URL with the bookmarklet code. To use it, type yt1z in your browser's address bar to find and run it — it won't work if tapped directly from the bookmarks list.
Format Reference
Supported Download Formats & Quality Limits
Everything YT1Z supports at a glance — from 4K video to 20-hour audio extractions.
| Format | Quality | Max Video Length | File Type | Audio Bitrate | Best For |
|---|---|---|---|---|---|
| MP4 | 720p HD | ⏱ Up to 3 hours | .mp4 | AAC 192kbps | General videos, tutorials, vlogs |
| MP4 | 1080p Full HD | ⏱ Up to 3 hours | .mp4 | AAC 256kbps | Movies, documentaries, courses |
| MP4 | 4K Ultra HD (2160p) | ⏱ Up to 1 hour | .mp4 | AAC 320kbps | Concerts, nature docs, cinematic content |
| MP4 | 480p Standard | ⏱ Up to 3 hours | .mp4 | AAC 128kbps | Mobile viewing, smaller file sizes |
| MP3 | Audio 128kbps | 🎵 Up to 20 hours | .mp3 | 128kbps stereo | Podcasts, long lectures, ambient music |
| MP3 | Audio 320kbps | 🎵 Up to 20 hours | .mp3 | 320kbps stereo | Music, ASMR, audiophile listening, audiobooks |
* Length limits apply to the original YouTube video. Quality options shown depend on what was available in the source video. 4K downloads require the original video to have been uploaded in 4K resolution.
How We Compare
YT1Z vs Other YouTube Downloaders
We built YT1Z to fix every frustration we had with every other tool out there.
| Feature | YT1Z ✦ | y2mate | yt5s | savefrom | Desktop apps |
|---|---|---|---|---|---|
| 100% Free | ✓ | Ads | Ads | Ads | Paid tiers |
| No sign-up required | ✓ | ✓ | ✓ | ✓ | ✗ |
| 4K video download | ✓ | Limited | Limited | ✗ | ✓ |
| MP3 up to 20 hours | ✓ | ✗ | ✗ | ✗ | Varies |
| MP4 up to 3 hours | ✓ | ~2hr | ~1hr | ~1hr | ✓ |
| Built-in YouTube search | ✓ | ✗ | ✗ | ✗ | Some |
| Works on mobile | ✓ | ✓ | ✓ | ✓ | ✗ |
| No install required | ✓ | ✓ | ✓ | ✓ | ✗ |
| 20 language support | ✓ | ~5 | ~8 | ~10 | Varies |
| Unlimited downloads | ✓ | Throttled | Throttled | Throttled | ✓ |
Comparison based on publicly observed limitations as of early 2025. Features subject to change.
Questions Answered
Frequently Asked Questions
Still have questions? Here are the ones we get asked most often.
Is YT1Z completely free to use?
Yes — and we mean it. YT1Z is 100% free with no hidden fees, no premium tiers, and no registration. You get the same full-quality downloads whether it's your first time or your thousandth. No strings attached.
What's the longest video I can download or convert?
For MP4 downloads in HD or 1080p, we support videos up to 3 hours long. For 4K MP4, the limit is 1 hour. For MP3 audio extraction, we go all the way up to 20 hours — which covers the longest ASMR sessions, day-long meditation tracks, full audiobooks, and marathon podcast episodes.
Can I convert a YouTube video to MP3?
Absolutely! Select the MP3 Audio format chip before pasting your URL or searching. YT1Z will extract the audio track and give you a clean, high-quality MP3 file. Great for music, podcasts, lectures, language learning, and of course, hours of ASMR.
Does it support 4K video quality?
Yes! YT1Z supports true 4K (2160p) video downloads for videos up to 1 hour in length, as long as the original YouTube video was uploaded in 4K. For longer videos, we offer HD (720p) and Full HD (1080p). Just select your preferred quality chip before downloading.
Do I need to create an account or install anything?
Nope — not at all. YT1Z is completely browser-based. No account, no email, no browser extension, no app to install. Open the page, paste your link, pick your format, and download. That's the whole process.
Is there a download limit per day?
Zero limits. We don't cap your daily downloads, weekly downloads, or anything else. Download one video or five hundred — YT1Z treats every request the same. We built this for people who really need it, so we didn't add artificial restrictions.
Can I search for YouTube videos without a URL?
Yes! Switch to Search YouTube mode using the tab above the search box. Type any keywords — artist name, song title, topic — and we'll show you up to 20 matching YouTube videos. Click any result to get its download options immediately.
Which devices and browsers are supported?
YT1Z works everywhere: Windows PC, Mac, Linux, iPhone, iPad, Android phones and tablets. Any browser with JavaScript — Chrome, Firefox, Safari, Edge, Opera — will work perfectly. Since it's web-based, there's nothing to install and nothing to update.
Is it safe? Will YT1Z collect my data?
Your privacy is important to us. YT1Z does not store your video files, search history, or personal information beyond the time needed to complete your download. We don't require login and we don't sell your data. Downloads are served over secure HTTPS connections.
Why is my download taking a while for a very long video?
Very long videos — especially 4K or 20-hour audio tracks — naturally take a bit longer to process and transfer due to their file size. For a 20-hour MP3, that's a lot of audio data! The conversion itself is fast; the transfer time depends on your internet connection speed. Most standard HD videos complete within a few seconds.