Browser compressor
Compress video directly in your browser.
Use a modern browser to create a smaller MP4. Your selected file stays on your device while the tool creates the output.
Browser video compressor
Local MP4 compression using browser-based video processing.
Your selected video is processed in this browser tab. It is not uploaded to a conversion server.
Ready.
Browser-based video processing
The selected file stays on your device, and performance depends on the file size and your device.
Best settings and limits
Best first try
Use 720p for a balanced output. Use 480p for faster processing and smaller files.
When this may fail
Some older browsers or restricted networks may not support this tool.
Privacy boundary
The selected video file stays on your device while the tool creates the output.
Frequently asked questions
Which browsers work best?
Recent desktop Chrome, Edge, and Firefox are the safest first choices.
Does browser compression upload my video?
No. The selected file is processed inside the browser tab.
Why is it slower than cloud conversion?
Your device does the encoding work locally instead of sending it to a server farm.