FREE BROWSER TOOL
Compress Video
Reduce video file size with a free MP4 video compressor. Process supported H.264 videos locally in desktop Chrome or Edge. No uploads.
Your files stay on your deviceCompress your MP4
Your files stay on your device.
Videos are processed locally in your browser. Results depend on your video and device. There is no guaranteed target file size.
or drag and drop it here
One H.264 MP4 video, with optional AAC-LC audio. No uploads.
Choose one H.264 MP4 video.
Processing library notice
Mediabunny 1.60.0, copyright © 2026-present Vanilagy and contributors. Used unmodified under the Mozilla Public License 2.0. Download the corresponding source and license.
What this tool is for
Choose a quality and resolution, then save a compressed MP4. Results depend on the source and your browser; a smaller file is not guaranteed.
How to compress a video
- Choose an H.264 MP4 and review browser support.
- Choose quality and resolution, then select a different output filename.
- Wait for local processing and review the saved video.
A few things to know
Can I compress video without losing quality?
This tool re-encodes video, so it cannot promise lossless compression. Higher quality prioritizes detail; Balanced and Smaller file trade more detail for smaller output. Keep Original resolution to avoid resizing, review the saved video and compare its actual size. A smaller file is not guaranteed.
Are videos uploaded?
No. Your video is processed in a local browser worker and written to your chosen destination.
Which browsers work?
Use desktop Chrome or Edge with native H.264 codecs and local file saving. Support depends on your device. This version supports compatible MP4 video and optional AAC-LC audio.