Compress MP4 online
Make an MP4 file smaller for uploads and sharing.
Compression runs close to the browser. Depending on browser support, the exported video format may differ from the original input.
Drop your file here or upload it
Add MP4 file
Compression runs close to the browser. Depending on browser support, the exported video format may differ from the original input.
Larger files may take a little longer depending on your browser and device.
Selected file
No file selected yet
Add a supported file to get started.
No file selected yet
Upload a video file to get started.
Results
Compressed video
No result yet
Your finished download will appear here once processing is complete.
How it works
How it works
Useful when a video file is too large.
Step 1
Upload the MP4 file.
Step 2
Start compression.
Step 3
Download the smaller output and review it.
Notes
Good to know
A few short notes before you start.
- The actual output format depends heavily on browser and device support.
- Compression can create visible quality differences.
- Very large videos are noticeably slower on mobile devices.
- Please only process content you have the required rights to use and modify.
Tool FAQ
Frequently asked questions about MP4 Compressor
The main answers in one place.
Will the output always be MP4 again?
Not in every browser. The final video format depends on supported recording and export capabilities.
When is MP4 Compressor useful?
Mainly for upload limits and whenever a video needs to become smaller quickly.
Should I review the result?
Yes. A short quality check is sensible, especially after stronger compression.
About this tool
What MP4 Compressor is meant for
A short explanation of when the tool helps.
This tool helps when a video needs to be smaller before upload or email.
The result can vary a bit depending on the browser.
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