Aimersoft Video Converter Ultimate

Best Way to Resize MP4 Quickly

  • Resize MP4 quickly by chaning video resolution, bit rate, encode, frame rate, etc.
  • Support batch resizing process.
  • Convert videos in 500+ formats, including MP4, MOV, AVI, MKV, FLV, and more.
  • Download videos from YouTube, Vimeo, Vevo, Facebook and other 1000+ sites.
  • Crop, trim, rotate video, add subtitle, effects and more to MP4 video.
  • Record screen, burn DVD/CD, make GIF images, and more other features.
  • Compatible with Windows PC and Mac.
Aimersoft Video Converter Ultimate

Best Ways to Resize MP4 on Windows/Mac (Batch Process Supported)

Smaller sized video files are not only easy to share over the internet and mail but are also convenient to store as they occupy less space. The file size resizing may also be required when you want to play your videos on small screens like phone and other devices. To help you resize MP4 videos, a number of professional tools are available. Using this program, MP4 files can be resized on the Windows and Mac system. Know about these tools to resize mp4 video in the following parts.

Part 1. Quick Way to Resize MP4 Video

Aimersoft Video Converter Ultimate is excellent software that supports a variety of video related features including video resizing and compression. The software supports a wide range of formats including MP4, MOV, FLV, AVI, and many others. Conversion in high quality at a super fast speed can be performed using the tool. Additional features including video recording, GIF maker, DVD burning, video compression, and others.

Aimersoft Video Converter Ultimate

Aimersoft Video Converter Ultimate

  • Resize MP4 by changing its parameters like resolution, quality, frame rate, and bit rate.
  • Allows to resize MP4 video without losing quality.
  • Support batch process.
  • Support preview of the resized MP4 video.
  • Trim, crop, rotate MP4, and add subtitle, watermark, effects to video.
  • Download videos from all popular sites like YouTube, DailyMotion, and other 1000+ sites.
  • Convert videos in 500+ formats losslessly.
  • Burn videos to DVD with free templates.
  • Supports working on Windows and Mac system.

Quick Guide to Resize MP4 file using Aimersoft Video Converter Ultimate

01 Add MP4 files to Aimersoft MP4 Compressor

Open the Aimersoft Video Converter Ultimate software on your PC. On the main interface of the software, select the Toolbox section and then choose the Compress Video option. A new pop-up window opens where you can click on the + sign to browse and add MP4 file that you want to resize.

how to Add MP4 files to Aimersoft MP4 Compressor

02 Select resize settings to resize MP4 file

As the file is added to the interface, it appears with its format, size, and resolution details. Now to resize your video, manually choose the values for resolution quality, format, and bit rate. Alternatively, you can also slide the progress bar to change the compression percentage which will automatically edit the file parameters. Click on the Preview button to check the file.

Select resize settings to resize MP4 file

03 Resize MP4 video

At Save file: tab choose the desktop location where you want to save the processed MP4 file. Finally, click on the Compress button to start the MP4 resizing process.

how to  Resize MP4 video

The above is about how to resize MP4 quickly in Aimersoft Video Converter Ultimate. However, if you have multiple MP4 files needing resizing, you can choose the batch process. The below will show you the easy steps.

Part 2. How to Resize MP4 Files in Batch

01 Run Aimersoft Video Converter Ultimate and add MP4 files in batch

Open Aimersoft Video Converter Ultimate on your PC/Mac. From the Convert tab, click on +Add Files to browse and add the local MP4 videos. You can also drag and drop the files to the interface. Add multiple MP4 files for batch processing at one time.

add MP4 files in batch to Aimersoft Video Converter Ultimate

02 Choose the target format

Once all files are added, they appear on the interface with its details. On the top-right corner, open the drop-down menu at Convert all files to: option. From the pop-up window, select desired output format from the Video tab. Then click on the +Create Custom button. A new Settings window will open.

 Choose the target format

03 Choose file resize settings

Here select Small Size under the file quality. There are also options to manually choose frame rate, resolution, bit rate, encoder, and other parameters. Click on Create button to confirm the settings.

Choose file resize settings

04 Resize MP4 video in batch

PC location to save the processed files can be selected at the Output tab. Finally, click on the Convert All button to start resizing all the added MP4 videos. The files can be managed on the interface from the Converted tab.

Resize MP4 video in batch finished

Part 3. How to Resize MP4 Online

Online tools are available for all types of video functions including resizing. One such program that allows resizing your files in a hassle-free manner is Online Converter. The tool needs no software download, installation, or the registration process. You can simply use the tool from the browser window of your system. Online Converter allows adding MP4 and other video files from your PC or through a link. 200MB is the maximum file size that can be added to the interface for the resizing process. Once the file is added to the program you can choose from the given options to select the size. Alternatively, you can also choose the width and the height of the file manually. When all settings are done, you can start to resize mp4 video online. The resized files are available at the software interface for the download to your PC.


  • Free to use program
  • Comes with simple interface
  • Need no software registration
  • Cons:

  • Dependent on the Internet for the resizing process
  • Limited format support for the process
  • Limited options to choose the compression settings
  • Slow MP4 resizing process
  • Online tool does not support batch processing and thus there is no option to resizing multiple files
  • Limitation to the size of the files

Resize MP4 Online

Online tools are a free and simple program but have a number of limitations. So if you are looking for resizing files without compromising on the file quality, Aimersoft Video Converter Ultimate is the best choice. The program once installed on your system can be used for single file or multiple MP4 files resizing. Moreover, the files can also be edited using the built-in editor. Free download it now and you will find more than video compression in it!

Adam Cash

staff Editor

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