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6 Methods to Resize MP4 Video to Make an MP4 File Smaller

Author by Vita

Updated on July 30, 2021

How to resize MP4 videos or make an MP4 smaller to play the video on mobile phones, upload the video to the likes of YouTube, or send it through email? This article introduces 6 ways to resize MP4 videos. All we need is the functional MP4 resizer:

MP4 is a commonly used digital multimedia format to store video. We can easily see MP4 files when we play, edit or download videos. Why do we need to resize MP4 files? Usually, we have the demands when we upload large MP4 files to video sharing sites, or send them to others through email. Beyond that, in order to play MP4 videos with widescreen size on mobile phones, we may also need to resize the files for better visual experience. Another scenario to resize an MP4 video is to make the MP4 file smaller. Then, here are 6 different methods with the help of a good video resizer.


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How to Easily Resize MP4 Videos with the Best MP4 Resizer

A good MP4 video resizer can help resize an MP4 video more easily and we highly recommend you use HD Video Converter Factory Pro. This software enables you to resize any video in a few clicks away through the optimized presets and it also provides various options of video parameters for resizing MP4 in customized way. Follow the detailed instructions on how to resize an MP4 video. These steps will also applicable if you want to know how to make an MP4 file smaller.

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6 Methods to Resize Your MP4 Videos as You Wish

Change the encoder to resize videos in MP4Change the encoder to resize videos in MP4

Method 1. Change MP4 video encoder without quality loss.

MP4 is a container format for storing data and its encoder greatly affect the size of video. For instance, a MP4 video with H265 encoder has higher compression ratio than a MP4 video with MPEG4 encoder and MP4 (H265) is much smaller than MP4 (MPEG4). So you can reduce MP4 video file by changing the encoder.

Step 1. Launch the MP4 resizer, select Converter and click on “Add Files” to import the target files.

Step 2.  Click on “Output Format” and select “H265 for MP4” under “Video” tab to resize MP4.

Step 3. Click on “Run” on the right corner to start the process.

Compress MP4 videoCompress MP4 video

Method 2. Use the Quick Settings to resize MP4

If you need a quick and straightforward method of resizing MP4, HD Video Converter Factory Pro also provides the advanced Quick Setting for you to compress MP4 video file visually.

Step 1. Import the MP4 files into the program.

Step 2. To make sure the output format will not be changed, please hit “Output Format” button and choose “MP4” under “Video”.

Step 3. Drag the Quick setting control bar.  When you drag it to the left, the file size will be smaller, yet the quality loss will increase.

Step 4. Hit “Run” button to make the size smaller at one go.

Cut/Crop videosCut/Crop videos

Method 3. Crop/Cut MP4 video to remove unwanted part

If there are any unwanted contents on the videos, you can trim or crop the videos to reduce video size file.

Step 1. Import the MP4 videos into the MP4 resizer.

Step 2. Choose MP4 format from the Output Format menu.

Step 3. To remove off the unwanted logo embedded on video, click “Crop” button and drag the rectangle frame to select the wanted part; to cut off the unwanted segments on the beginning, end or other parts, click the scissors icon and drag the slider on the timeline to select the wanted part. Then hit “Ok” .

Step 4. Hit “Run” to start your task.

The process in method 3 will not change the video display size. If you want to play a HD MP4 file with widescreen size on iPhone and other mobile devices, you’d better change the aspect ratio from 16:9 to 4:3: Change Aspect Ratio for Better Display Effect

Change the resolution of MP4 videoChange the resolution of MP4 video

Methods 4: Change resolution to resize video in MP4

Besides resizing MP4 with the methods above, you can also change the video resolution. Generally, the more pixels the video has, the shaper the image will be, the larger the file size will be. So you can change the resolution to lower one to resize MP4 but the video quality will also be damaged in varying degrees. Let’s see how to change video resolution.

Step 1. Import the target files and choose MP4 as output format.

Step 2. Click “Parameters Settings” button and go to the “Video” section on the Settings window. Open the drop-list next to Resolution and you can see all the ready-made options from 240px160p to 3840px2160p. Choose the desired one and then click “OK”.

Step 3. Specify an output folder and Run.

Adjust bit rateAdjust bit rate

Method 5. Reduce bit rate to make MP4 smaller

Bit rate of video is one of the most crucial factors affecting video size. So it’s an effective way to resize MP4 files by adjusting bit rate.

Step 1. Drag MP4 videos into HD Video Converter Factory Pro and select MP4 as output format.

Step 2. Go to the “Settings” window and adjust bit rate of the MP4 video. After that, click “Save”.

Step 3. Hit “Run” for the process.

Adjust MP4 video frame rateAdjust MP4 video frame rate

Method 6. Adjust Frame Rate

Another way of reducing MP4 video is adjusting frame rate. Often, MP4 videos in 24fps and 30fps are enough for vision. And 60fps may lead to audio sync problem. Therefore, we always change frame rate to resize files.

Step 1. Select and import the target videos. After that, choose MP4 as output format.

Step 2. Open the “Settings” window and go to Video section. Choose the desired frame rate from the options. You can also customize frame rate if you want.

Step 3. Choose an output path for the MP4 videos and hit “Run”.

It’s all about the methods on how to resize MP4 videos. With HD Video Converter Factory Pro – the useful and handy MP4 resizer, you’re able to resize any videos at ease. Moreover, this software offers other outstanding features. Additionally, it can help resize MP4 online with the download feature.

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