100% In-Browser · Zero Uploads

Compress Video Privately

Shrink MP4, WebM, and MOV video sizes directly inside your browser. No video is ever sent over the internet, keeping your private clips 100% confidential.

Drop your video file here
or click to browse from your device (MP4, WebM, MOV)
Target Size & Quality
Video Compressed
Processed in browser memory

Why Compress Videos In-Browser?

Video files are often hundreds of megabytes in size, making them cumbersome to email, share via Slack, or upload to websites. Most online compressors force you to upload large, confidential video files to third-party servers, where they wait in processing queues and risk privacy leaks. OnlyFiles eliminates the server altogether, compressing the video on your device using hardware-accelerated browser engines.

Zero Network Latency

You don't need to spend 10 minutes uploading a 200MB video just to compress it. Processing starts instantly upon selection.

Strict Privacy

Private screen shares, personal camera recordings, and proprietary company presentations stay strictly on your machine.

Multi-Format Support

Supports MP4, WebM, and MOV containers encoded with modern H.264 and VP8/VP9 standards.

No Watermarks

Export clean, full-resolution videos with zero promotional banners or logos overlaid on your footage.

Frequently Asked Questions

Does compressing video reduce audio quality?
OnlyFiles prioritizes speech clarity and audio fidelity while reducing redundant video stream bitrate, so dialogues and sound effects remain clear.
Can I compress video on my mobile phone?
Yes! Modern mobile browsers on iOS (Safari) and Android (Chrome) feature built-in hardware acceleration that supports client-side video processing.