Video Compressor: Reduce MP4 Size Online
Client-Side SecureShrink video file size directly in your browser. Optimize MP4s for Discord, Email, or Web without uploading.
Video Shrinker
Reduce size for Discord, Email & Web.
Drop Video Here
Supports MP4, MOV, WEBM, MKV. Max recommended size: 200MB (for browser stability).
Compression Settings
"Balanced" is recommended for Discord/WhatsApp.
Is this tool broken?
Let us know if you found a bug or have a feature request.
Free Online Video Compressor
Shrink your video files quickly and securely. Reduce file size for Discord (8MB limit), Email, or WhatsApp without losing significant quality.
Powered by FFmpeg.wasm, this tool runs entirely in your browser. Your large video files are never uploaded to a server, ensuring maximum privacy and speed.
Fast & Private
No uploading means no waiting for slow server transfers. The compression happens locally on your device's CPU.
Social Ready
Optimize videos for Instagram Stories, TikTok, or Discord's strict file size limits. Choose 720p or 480p to slash file size.
Full Control
Adjust the Constant Rate Factor (CRF) to balance quality vs. size. We use the industry-standard H.264 codec for maximum compatibility.
Troubleshooting
If the process gets stuck or fails, try using a smaller video file or a desktop browser like Chrome or Edge. Video compression is a resource-intensive task that requires significant processing power (RAM & CPU).
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