Compress MP4 Files Online
Last Updated: April 1, 2026
Compress MP4 files by up to 90% without visible quality loss. Fast, free, no limits.
Use This Tool Free →Your MP4 is too large for email, Discord, or WhatsApp? Our compressor reduces file size dramatically while keeping the video looking great. Choose light, medium, or heavy compression depending on your needs.
100% Free
No hidden costs, no premium tiers, no credit card required. Every feature is free.
No Signup
Start using immediately. No account creation, no email verification, no friction.
Private & Secure
Your files are processed and never stored. We don't keep copies of anything you upload.
Works Everywhere
Browser-based — works on Windows, Mac, Linux, iOS, and Android. No app to install.
Frequently Asked Questions
Is this video tool free?
Yes, all video tools on AI-MP4.com are free to use without any subscription.
What video formats are supported?
We support MP4, MOV, AVI, MKV, WebM, and most common video formats.
How long can my video be?
We support videos up to 2GB or 2 hours in length.
Is my video stored on your servers?
No, videos are processed and immediately deleted. Your privacy is guaranteed.
Does processing happen in the cloud?
Yes, processing is done server-side for fast results on any device.
83.1K
Happy Users
303.1K
Files Processed
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Why Choose This Tool
Files processed in your browser. Nothing uploaded.
AI-powered processing in seconds, not minutes.
No hidden fees, no signup, no limits.
Any device, any browser. No installation needed.
How It Works
Upload
Drop your file or paste content into the input area
Process
Click the button and let AI do the heavy lifting
Download
Get your result instantly, ready to use
User Reviews
"Replaced a paid subscription with this free tool. Couldn't be happier."
Small Business Owner"I recommend this to all my students. Simple and effective."
Teacher"Finally a tool that just works without asking for my email first."
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