Free MP4 Optimizer · Social Ready · Fast · Private
MP4 Compressor — Reduce MP4 Size Free Online
Compress MP4 videos for sharing on social media, WhatsApp, or uploading to YouTube. Our tool significantly reduces MP4 file size directly in your browser for complete privacy.
Drag and Drop Your Files Here
or click to browse — multiple files supported
How to Compress MP4
Upload Your File
Drag and drop or click browse to select your files. Multiple files supported simultaneously.
Adjust Settings
Set quality or other options to match your specific requirements.
Download Result
Click the button and instantly download your converted file. Done in seconds.
About This Tool
Compress MP4 videos for sharing on social media, WhatsApp, or uploading to YouTube. Our tool significantly reduces MP4 file size directly in your browser for complete privacy. The Toollyfy MP4 Compressor tool runs entirely in your browser — your files are never sent to any server. This means your data stays completely private and conversion is instantaneous with no upload wait times.
Our tool supports batch processing, so you can convert multiple files at once. It works on all devices including Windows, Mac, iPhone, Android, and Chromebook with no installation needed.