Download and Convert Videos Online - MP4 & MP3
Why download first and convert later when you can do both at once? UniDownload is an online video downloader and converter — paste a link, pick MP4 or MP3, and the file lands on your device ready to use.
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 also get audio only?
Yes. Besides MP4 video, you can extract the audio as MP3 — perfect for music, podcasts, and interviews.
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.