FastFileConvert

MP4 Compressor

Reduce MP4 File Size Online

Drop your files here

Or click to browse • All major formats supported • Max 100MB per file

Compress MP4 Files Easily Without Losing Quality

MP4 is one of the most widely used video formats — it's versatile, compatible, and high-quality. But even MP4 files can get large, especially with HD or long-duration content. Whether you’re trying to send a video by email, upload it faster, or just save space, FastFileConvert’s MP4 Compressor is the perfect solution.

Why Compress MP4 Files?

Large MP4 files can be inconvenient. They take longer to upload, slow down websites, and eat up mobile data or storage space. Compression helps solve this by reducing the file size — without noticeably affecting video quality — making your content faster to share and easier to manage.

How Our MP4 Compressor Works

FastFileConvert’s MP4 Compressor uses smart compression techniques to shrink your video files quickly and efficiently. There’s no need to adjust complicated settings or install bulky software. Just:

  1. 1

    Upload your MP4 file

  2. 2

    Let our tool automatically compress it

  3. 3

    Download your smaller, optimized video

Frequently Asked Questions

How can I compress an MP4 video with FastFileConvert?

Go to the MP4 Compressor tool on FastFileConvert, upload your video, and the tool will automatically compress it. Once complete, you can download the smaller version right away.

Will compressing my MP4 reduce the video quality?

Some compression may reduce quality slightly, but FastFileConvert uses optimized settings to keep your video looking sharp while making the file smaller.

Can I use the MP4 compressor on my phone?

Yes, the MP4 Compressor works on mobile devices and tablets. It runs directly in your browser with no app installation needed.

How much smaller will my video be after compression?

The reduction depends on the original size, resolution, and bitrate of your video. Most users see file size reductions between 30% and 70%.

Is my MP4 file safe during compression?

Yes. All files are encrypted during upload and automatically deleted after compression. FastFileConvert never stores or shares your video content.