LocalVideoKit

Compress Video to 100 MB

Target a 100 MB file size limit for cloud drives, WhatsApp document sharing, and web platforms.

Active PresetTarget 100 MB

100 MB budget for WhatsApp document sharing, cloud drives, and high-definition long clips.

Drop video or audio files here or browse your device

.mp4 · .mov · .mkv · .webm•As many files as your device can handle
Privacy-firstNo uploadsProcessed locallyWebCodecs & GPU acceleration active

Frequently Asked Questions

Are my video or audio files ever uploaded?

No. LocalVideoKit processes all media files directly in your web browser using HTML5 File APIs, WebCodecs, and WebAssembly. Your files are never sent to any server or cloud service.

Is there a file size limit?

Because files are processed entirely in your browser's memory, the practical limit is your device's available RAM and your browser tab's memory ceiling. Shorter clips and files under a few hundred megabytes process comfortably on most devices; very large or long files may run slowly or fail on lower-memory devices.

How does target size video compression work?

By analyzing the exact duration of your video clip, LocalVideoKit computes the necessary constant bitrate budget (audio + video) to hit your chosen megabyte ceiling. WebCodecs encodes the video in your browser with no quality lost to server recompression.

How this tool works

Compress long or 4K videos down to 100 megabytes in your browser. Retain 1080p fidelity while staying under upload limits.