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How to Reduce MP4 File Size with the Best Video Resizer

As we all know, if you want to upload a video to YouTube and transfer a movie from a computer to a smart phone, you must first make sure the size of the video file fits the requirement well. A large MP4 video file tends to fail a smooth playback. HD Video Converter Factory Pro must be the best choice for MP4 compression with the ability to reduce 50% the size of a video at the fastest speed with the least quality loss.


HD Video Converter
Best MP4 Video Resizer
HD Video Factory Pro is going to empty more storage space for your portable devices by reducing MP4 file size with little loss, simple, fast and convenient!
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Compatible with Windows 10/8.1/8/7/Vista/XP/...

Three Ways to Reduce MP4 File Size

Reduce MP4 movie size

Reduce MP4 movie size

Method 1: Changing Video Parameters to Reduce MP4 Size

There are many factors that influence the size of a video file, such as resolution, bit rate, and frame rate. Needless to say, the higher value these factors are, the better quality a video will gain. But it will certainly pay a price. So, an effective way to  reduce MP4 file size is to carefully decrease the value of the parameters above without making the output quality worse

Method 2: Convert MP4 to the Formats and Codec Which Takes Less Storage Space.

Here are two examples; one of them is to convert MP4 to FLV for YouTube video uploading that takes much less space. As for the other, basically, nowadays MP4 usually contains three kinds of video codec - H264, MPEG-4 and H.265. Comparing these three encoders, H264 has a 1.5~2 larger compression ratio than MPEG-4 while under the same bit rate, the quality of H264 file is better than MPEG-4 by 60~80%, and H.265 makes a video half the size of H.264 one with the same video quality. Therefore, compressing MP4 size by altering its codec makes sense.

Method 3: Triming

Strictly speaking, I do not think it can be called a method because there are few people willing to do like it. Trimming to edit your video file - clipping it to a shorter content or cropping to remove some extra areas such as black bars helps to reduce size of MP4 to some extent while it might make the video look unnatural.

Free Download the best video size reducer to compress your MP4 file!

In HD Video Converter Factory Pro, you can try the three methods above, experiencing the highest compression ratio at the fastest speed.

How to Reduce MP4 Size with the Best MP4 Resizer

Step 1: Load MP4 Files into MP4 File Size Reducer

Launch the program, enter Converter window and click on "Add Files" on the upper left side of the interface and choose the MP4 file you want to compress, and also, you can directly drag it from your folder onto the interface. Then, at the bottom, preset a output path for the video by clicking on the folder icon.

Tips: Batch conversion and hardware acceleration are available as well.

Add your MP4 files

Add your MP4 files

Step 2: Start to Reduce MP4 File Size

There are two ways to change the parameters for smaller MP4 size. The first one is to drag the slide bar on the right and move it from high resolution like 4K and 1080p to 720P and 480P. Or, you can click on "Settings" below the slide bar to enter the parameter page where you can downscale resolution, change frame rate and bit rate - Decrease the values of them to get smaller MP4 video size.

(Optional) You can change MP4 to H.265 since H.265 is the latest video compression standard for smaller size. Just go to the right side of the interface, click below the two words "Output Formats". In the new page, choose Video section and then you will find the icon of H.265 for MP4.

 Changing parameters to compress MP4

Changing parameters to compress MP4

Tips: Decrease the parameters according to your own need, if resolution and bit rate are not high enough, the output image will get blurred. For example, to transfer a 4K video to your iPhone, you do not need to change the resolution into 480P as 1080P should be the best choice.

Step 3 Finish All Settings

Go to the main page, click on "Run" on the lower right side to start compression. Wait for several seconds before a 100MB MP4 video file gets completely compressed.

Start Compression

Start Compression

Use the Software as a Simple Convenient YouTube Video Downloader

 Download YouTube video

Download YouTube video

More than a simple video compressor to reduce mp4 file size, HD Video Converter Factory Pro also performs as an outstanding YouTube video downloader. Here I am going to briefly explain how to download a YouTube video with it.

Enter Downloader window, press +New Download on the top and paste URL to analyze. After that, select an output format and click OK. Next, choose the file path for video you are going to download. At last click on "Download All" to start.

Now, please download the HD Video Converter Factory Pro to complete your jobs.

More Special Features on HD Video Converter Factory Pro

  • Compressing your MP4 video files to free up storage space
  • An audio compressor to save space for your portable MP3 player
  • Best video downloader helping you download videos from main-stream websites
  • A video editor to help you modify your video by trimming
  • A ringtone maker to help you create enchanting ringtone music
  • Enhancing your video by changing bit rate, frame rate, and resolution
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How to Reduce MP4 File Size with the Best Video Resizer

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