Compress Video for Email Attachments
Shrink video file sizes below 20MB for Outlook, Apple Mail, and Yahoo. Attach videos directly without cloud drive links.
Drop your video here or browse files
Supports MP4, iPhone MOV, WebM, MKV. Processed locally in your browser.
How to Compress a Video Online for Free
Select Target Limit
Choose your target limit (Discord 8MB, WhatsApp 16MB, Gmail 25MB, 100MB, or Custom). Our engine computes the exact bitrate needed.
Drop Video File
Drop any MP4, MOV, WebM, or MKV. Compression executes entirely inside your browser memory using WebAssembly.
Download Output
Get your optimized MP4 file instantly. No watermarks, no account registration, and zero data transmitted to servers.
Why Choose ClipShrink Over Cloud Video Compressors?
100% Client-Side Privacy
Your personal clips and work videos never touch external cloud servers. Zero storage, zero leaks.
Zero Server Upload Queue
Traditional tools force you to upload 100MB over slow connections. ClipShrink processes directly on your device CPU.
Dynamic Bitrate Capping
We calculate custom VBR bitrates with safety margins so your video finishes right below the target size.
Apple MOV, WebM & GIF Support
Effortlessly convert heavy Apple QuickTime (.MOV), WebM, and animated GIFs to universally compatible MP4 files.
Frequently Asked Questions
What is the standard video attachment limit for email?
Most mainstream email providers (Outlook, Apple Mail, Yahoo) cap direct attachments between 20MB and 25MB. ClipShrink targets 19MB to ensure delivery without attachment bounces.
How do I avoid Google Drive or OneDrive cloud upload links?
Compressing your video under 20MB allows your email software to attach the raw MP4 file directly into the email body rather than forcing an external cloud storage link.