Compress a MP4 video
Shrink an MP4 video by adjusting its bitrate and resolution — useful for emailing it, uploading it faster, or freeing up storage space.
Accepted source formats
How it works
Drop your MP4 file: its resolution and duration are detected automatically.
Pick a compression level: the lower the bitrate, the smaller the file, at the cost of slightly reduced sharpness.
Download the compressed video, typically 50-80% smaller with limited visual loss.
Common mistakes
- Using a source file of poor quality.
- Publishing without checking the final result.
- Confusing file size, dimensions and quality.
- Overwriting the original file without keeping a copy.
Pro tips
- Always keep an original version.
- Test several settings before downloading.
- Use WebP for the web when possible.
- Choose descriptive file names for SEO.
Privacy and file handling
File handling depends on the selected tool and format. For sensitive files, review the tool information before starting the operation.
How to convert a MP4 file to Compress a MP4 video?
Drag and drop or select your MP4 file from your device. Click "Convert" and wait a few seconds. Get your converted Compress a MP4 video file instantly. Convert MP4 files to Compress a MP4 video online. If a file fails, try a smaller version or split it when the tool supports that workflow.
Supported formats
Source format: MP4. Target format: Compress a MP4 video. The final format should match how you plan to use it. Always check the output file before sharing it. Convert MP4 files to Compress a MP4 video online. The result depends on what the MP4 and Compress a MP4 video formats can preserve.
What is the maximum MP4 file size?
The practical file-size limit depends on the format, browser and memory available on your device. If a file fails, try a smaller version or split it when the tool supports that workflow. Keep the original until you have approved the result. Convert MP4 files to Compress a MP4 video online.
Which browsers are compatible?
Use a recent, up-to-date browser. Behaviour can vary with the file format, available memory and the features supported by your device. Always check the output file before sharing it. The final format should match how you plan to use it. Keep the original until you have approved the result.
Can I use the tool on mobile?
You can try the tool on a phone or tablet with a recent browser. Large files may require more memory or be easier to process on a desktop computer. Choose a file, run the conversion, then check the result before downloading it. Current quotas and higher plans are shown on the Pricing page.
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