YT1s - Free YouTube to MP4 Converter (HD, 1080p, 4K)
YT1s is a free, web-based YouTube to MP4 converter. that lets you convert and download YouTube videos in high-quality MP4 format, supporting resolutions from 144p, 240p, 360p, 480p, 720p HD, 1080p Full HD, 1440p (2K), up to 2160p (4K), all without installing any software or creating an account. All conversions run on our secure cloud servers, keeping your device completely protected from malware. YT1s also supports a wide range of output formats including MP4, 3GP, WEBM, M4A, AVI, FLV, MKV, and MOV.
YT1s places no limits on the number of downloads or file sizes. MP4 is the most universally compatible video format, it plays natively on every phone, laptop, smart TV, and media player without any additional software. Whether you are saving YouTube videos for offline viewing, educational use, travel, or content reference, YT1s delivers your high-quality MP4 file fast, in the best resolution available from the original source.
HD to 4K Quality Downloads
Downloading videos in MP4 files on YT1s YT1s supports the full range of MP4 resolutions from 144p up to 4K UHD (2160p). Choose the quality that best fits your device and storage needs. The original video quality is preserved throughout conversion with no added compression artifacts.
Supports All Video Formats
Beyond MP4, YT1s supports conversion to MP3, 3GP, M4A, WEBM, AVI, FLV, MKV, MOV, OGG, and more, giving you complete flexibility to download in the exact format your device or player requires.
Lightning-Fast Conversion
Our advanced cloud conversion engine processes YouTube to MP4 conversions in just a few seconds, even for HD and 4K videos. Paste your URL, select quality, click Convert, and your MP4 file is ready almost instantly.
Cloud Storage Integration
Save your converted MP4 files directly to Google Drive or Dropbox for free. Access your videos from any device at any time without using up local storage space on your phone or computer.
Unlimited Free Downloads
Convert and download as many YouTube videos to MP4 as you want, with no daily limits, no subscription fees, and no hidden charges. YT1s is always 100% free to use.
Works on All Devices & Browsers
YT1s is fully compatible with Windows, Mac, Linux, Android, and iOS. Use it on any modern browser Chrome, Safari, Firefox, Edge, Brave, or Opera with no installation or login needed.
Download YouTube Videos to MP4 with YT1s
With YT1s, downloading any YouTube video as a high-quality MP4 file is fast and effortless. Get videos in Full HD 1080p, 2K, or 4K resolution on any device, PC, Mac, Android phone, iPhone, or tablet, without installing any software or creating an account. MP4 is the most universally compatible format, playing on virtually every device and media player without extra software. Just paste the YouTube link, choose your resolution, and download your video in seconds.
How to Convert YouTube to MP4 in 3 Simple Steps
Download any YouTube video as a high-quality MP4 in seconds, no apps, no sign-up required.
- 1
Copy the YouTube video URL from your browser or the YouTube app, then paste it into the search box.
- 2
Select MP4 format and your preferred video resolution (e.g., 1080p or 4K), then click Convert.
- 3
Wait a few seconds for conversion to complete, then click the Download button to save your MP4 file.
FAQs - YT1s YouTube to MP4 Converter
What is a YouTube to MP4 Converter?
A YouTube to MP4 converter is an online tool that downloads video from a YouTube URL and saves it as an MP4 file on your device for offline viewing. YT1s supports resolutions from 144p all the way up to 4K UHD.
Can I download YouTube videos to MP4 for free?
Yes. YT1s is 100% free. All YouTube to MP4 conversions and downloads are completely free, no subscriptions, no hidden fees, and no download limits of any kind.
What video quality options are available for MP4?
YT1s supports multiple MP4 resolutions including 144p, 240p, 360p, 480p, 720p HD, 1080p Full HD, 1440p (2K), and 2160p (4K), depending on the original quality available on YouTube.
Will the downloaded MP4 include audio?
Yes, in most cases the MP4 file includes both video and audio. On some higher resolutions like 4K, YouTube may only expose a video-only stream. If that happens, simply select the nearest resolution that includes audio.
Can I use YT1s to download MP4 on my Android or iPhone?
Yes! YT1s is fully mobile-compatible and works on all Android phones, iPhones, iPads, and tablets. Simply open YT1s in your mobile browser, paste the YouTube link, choose MP4, and download. On iPhone, tap the download arrow and choose Save to Files.
Do I need to install any software or create an account?
No. YT1s is entirely browser-based. You do not need to install any app, software, or extension. No account or registration is required, just open the website and start downloading.
Is it safe to download YouTube videos to MP4 using YT1s?
Yes. YT1s uses SSL encryption and processes all conversions on secure cloud servers. We never collect, store, or share your personal data or download history. The platform is completely free from malware, viruses, and intrusive ads.
What devices and browsers are compatible with YT1s?
YT1s works on all devices, Windows PCs, Macs, Linux, Android phones, iPhones, and tablets, and all modern browsers including Chrome, Safari, Firefox, Edge, Brave, and Opera.
How long does the YouTube to MP4 conversion take?
Most YouTube videos convert to MP4 in just a few seconds. Higher resolution videos like 4K may take slightly longer. Keep your browser tab active and use a stable Wi-Fi connection for the best results.
Where is the downloaded MP4 file saved?
Downloaded MP4 files are automatically saved to your device's Downloads folder. On Android, the file also appears in your gallery or video player app. On iPhone, go to Files > Downloads to find your video.
Is it legal to convert YouTube videos to MP4?
Downloading YouTube videos for personal, non-commercial use is generally acceptable for non-copyrighted and public domain content. Always respect YouTube's Terms of Service and applicable copyright laws in your region. Do not distribute downloaded content without permission from the creator.
Can I download long YouTube videos to MP4?
Yes. YT1s has no strict length restrictions. You can download both short clips and full-length YouTube videos. For very long videos, keep the browser tab active and use a stable internet connection to avoid interruptions.
Thank you for using YT1s, your trusted YouTube downloader.