Offline-style compression
Compress video with offline-style local processing.
This page loads from the web, then processes the selected video in your browser tab. It is designed for people who do not want to upload private footage.
Offline-style video compressor
No-upload MP4 compression in the browser.
Your selected video is processed in this browser tab. It is not uploaded to a conversion server.
Ready.
What offline means here
The selected video file stays on your device while the tool creates the output.
Best settings and limits
Best first try
Use Balanced at 720p for a normal first pass. Choose 480p if you need a smaller file.
When this may fail
This is not an installed desktop app. If you close the tab, the local processing state is gone.
Privacy boundary
The selected video file stays on your device while the tool creates the output.
Frequently asked questions
Is this fully offline?
No. The selected video file stays on your device while the tool creates the output.
Will my video be sent to a server?
No. The source file stays in your browser tab during processing.
Why use this instead of uploading to a converter?
It avoids sending private footage to a third-party conversion server.