MP4 Downloader for Online Videos - Universal Format
MP4 is the format everything plays, and UniDownload is the MP4 downloader for online videos: whatever site the video lives on, you leave with a standard MP4 file in the quality you picked.
How to Download Videos Free
Copy the video link
Open the video on any supported site and copy its URL from the address bar or share menu.
Paste it above and click Get Info
The tool instantly reads the link and shows every available quality for that video.
Choose quality and Download
Pick the resolution you want (or MP3 for audio only) and the MP4 file saves directly to your device.
Why Choose UniDownload
Works with 1000+ sites
YouTube, Facebook, Instagram, TikTok, Twitter/X, Reddit, Vimeo, and many more platforms.
Fast server-side downloads
Videos are processed on our servers and streamed to you at the highest possible speed.
Every device, every browser
Fully responsive — works on Android, iPhone, tablets, Windows and Mac. Nothing to install.
Free, private & unlimited
No registration, no watermarks, no download limits, and no personal data required.
Frequently Asked Questions
What format will I get?
Videos are saved as MP4 with H.264 video, the most compatible format. It plays on any phone, tablet, computer, TV, and media player without extra software.
Can I choose the video quality?
Yes. You can pick any quality available on the source — from 144p up to 4K or even 8K where the original supports it.
Is this online video downloader really free?
Yes. UniDownload is 100% free — no registration, no hidden fees, no watermarks. Download as many videos as you need, whenever you want.
Does it work on mobile phones?
Yes. The tool is fully responsive and works on Android, iPhone, tablets, and computers — just paste the link and download.