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Home > Movie Users>RMVB Converter: How to Convert RMVB/RM to MP4 Online Flawlessly

RMVB Converter: How to Convert RMVB/RM to MP4 Online Flawlessly

by Christine Smith • 2024-01-11 10:28:10 • Proven solutions

Standing for RealMedia Variable Bitrate File, RMVB is used for publishing videos over the Internet, owing to its smaller file size and decent quality. Widely used for Asian movie titles and Anime, the format is developed by RealNetworks and can be played only on RealPlayer. If you come across RMVB or RM file, then either you need to stick to the RealPlayer, or convert the file to a popular and device compatible format like MP4. So if you are looking for a solution to convert RMVB to MP4 online, read below to know more.

Recommended RMVB Converter

Wondershare UniConverter

Security Verified. 5,481,347 people have downloaded it.
  • Directly convert RMVB/RM to MP4, VOB, AVI, MKV, MOV and other 1000 formats.
  • Burn RMVB/RM videos to DVD disk or Blu-ray disc to play with your DVD player.
  • 90X faster conversion speed compared with other common converters without any quality loss.
  • Edit videos with advanced video editing functions like trimming, cropping, adding watermark, subtitles, etc.
  • Download or record videos from YouTube and other 10,000+ video sharing sites.
  • Industry-leading APEXTRANS technology converts videos with zero quality loss or video compression.
  • Versatile toolbox combines video metadata editor, GIF maker, video compressor, and screen recorder.

Part 2. Top 5 Converters to Convert RMVB to MP4 Online

Online converters are a good way to get your conversion problems resolved. The majority of these converters are free to use, have a simple interface, and do not need any installation or registration process. To help you convert RM to MP4 online, the list of top 5 converters is listed below.

1. Convertio

Convertio is one of the most popular and widely used online converters that allows converting an array of videos, audio files, images, documents, EBooks, archives, and other files. RMVB files can be conveniently converted to MP4 or other desired format using the program. The converter is free to use and allows adding files from PC, Dropbox, Google Drive, and URL. In addition to the desktop, the converted files can also be saved directly to Google Drive or Dropbox.


  • Free to use.
  • Allows uploading files from multiple sources.
  • Allows saving converted files to Google Drive as well as Dropbox.
  • Support a decent list of file formats.
  • Multiple files can be added at a time.


  • It does not allow setting advanced options for the converted file.
  • Need an Internet connection to work.

Convert RMVB/RM to MP4 Online - Convertio

2. Apowersoft Free Online Video Converter

Developed by Apowersoft, Free Online Video Converter allows converting as well as editing an array of video and audio files including RMVB to MP4. For first time users, a launcher needs to be downloaded after which unlimited conversions can be done. The converter also allows converting files to device compatible formats like iPhone 7, Galaxy S7, Nexus 6, and others. The program also allows editing videos with features like trimming, adjusting video size, adding watermarks, and others. You can also select the video resolution, bit rate, frame rate, and other parameters of the converted files.


  • Free software with unlimited conversion.
  • Allows setting frame rate, bit rate, resolution, and channels of the converted file.
  • Allows editing files with options like trimming, adding watermarks and others.


  • For first time use, a launcher needs to be downloaded.
  • File formats are limited as compared to professional desktop software.

Convert RMVB/RM to MP4 Online - Apowersoft Free Online Video Converter

3. FileZigZag

FileZigZag is a free online RMVB converter that allows converting different types of files like video, audio, archive, document, and others. While using the converter, you simply need to upload the desired file from your PC, select output format, and enter your email ID. Once the file is converted, you can download it directly from the program interface or from the link sent to your email address. The converter supports uploading up to 2GB of the media file. Output file up to 2GB can be processed using the converter.


  • Free to use.
  • In addition to the online converter, it also offers free cloud storage and file-sharing services.
  • Allows unlimited file conversion under 180MB.


  • Input and output file size is limited to 2MB.
  • Allows only 1 conversion a day for large files above 180MB.

Convert RMVB/RM to MP4 Online - FileZigZag

4. Zamzar

Zamzar is another popular name in the list of top 5 converters for converting RMVB to MP4 format. The program supports more than 1200 different types of conversion, including video, audio, music, CAD, images, and others. The program has good conversion speed with simple to use interface. Once the file is converted, the download link is sent to the provided email address.


  • Free to use.
  • Good conversion speed.
  • Supports multiple file types for the conversion process.
  • Simple to use interface.


  • No editing features for converted files.
  • It does not support setting parameters for the converted file.
  • The converted file is stored for only 24 hours.

Convert RMVB/RM to MP4 Online - Zamzar

5. CoolUtils

This is another free to use an online converter that allows converting RMVB to MP4 file format. While using the program, you simply need to add the desired file, select output format, and convert it. In addition to PC, the program also allows adding files from Google Drive, and dropbox. The popular and commonly used format is supported for conversion by the converter, and it also allows setting sample rate, channels, and bitrate of the converted files with some of the formats. The converted file can be downloaded from the program interface.


  • Free to use.
  • Allows setting bitrate and other parameters of the output file.
  • Allows adding source file from Google Drive as well as Dropbox, in addition to local PC.


  • Limited file support as compared to other converters.
  • Dependent on the availability of an Internet connection.

Convert RMVB/RM to MP4 Online -CoolUtils

Part 2. Best Alternative to Online RMVB to MP4 Converters

Online RM converters are undoubtedly convenient, with no hassles of downloading and installing any software. But at the same time, these converters have their set of limitations like limited file size and format, slow speed without bonus functionalities. So if you need your conversion process to be more accurate, stable and fast, then the best alternative will be to go for a desktop converter. One such professional software is Wondershare UniConverter (originally Wondershare Video Converter Ultimate) that allows converting RMVB to MP4 with other 1000 popular formats supported. The software comes loaded with APEXRANS technology that makes the conversion process 30 times faster without any quality loss. Additionally, the software allows downloading videos from YouTube and other popular sites, features editing tools, and also works as a DVD took-kit. Available for Windows as well as Mac system, the software can also process batch conversion of multiple files with just a click of a button.

Steps to convert RMVB/RM to MP4 using Wondershare RMVB Converter:

Step 1 Launch Wondershare RMVB converter and add RMVB/RM file(s).

Download, install and launch Wondershare UniConverter (originally Wondershare Video Converter Ultimate) on your Windows/Mac system, here we make Windows computer, for example. You can simply drag and drop the RMVB file to the main software interface. Alternatively, click +Add Files icon and browse for the desired RMVB files on your computer.

Launch Wondershare RMVB converter and add RMVB/RM file

Step 2 Select MP4 as the output format from this RM converter.

Select MP4 and the related resolution from the Video category. Additionally, You can click Create to customize an output format per your needs too.

Select MP4 as the output format from this RM converter

Step 3 Convert RMVB to MP4 on Windows.

Finally, click the Convert button to convert the single video or click the Start All button to start the batch conversion process. You can check the converted files in the Finished option once RMVB file(s) is successfully converted to MP4 format.

Convert RMVB/RM to MP4 Online

Part 3. Tips About RMVB/RM to MP4 Online

1. What is RMVB/RM?

Developed by RealNetworks, which is the parent company of RealMedia, RMVB ( RealMedia Variable Bitrate file) format is used for distributing movies and videos over the Internet. Though the format is not as popular as AVI, MP4, and other known names, RMVB/RM has smaller file sizes, lower bitrates, and decent quality, which makes it popular among Anime clips and Asian movies. One major disadvantage of RMVB files is its poor compatibility, as these files can only be played in RealPlayer.

2. Why do you need to convert RMVB/RM to MP4?

Though RMVB/RM files have decent quality at the smaller file size, when compare with other popular formats like MP4, MKV, AVI, and others, they are inferior and have poor compatibility. Thus major reasons to convert RMVB to MP4 are enlisted below:

  • Though the RMVB file format has a smaller size with a lower bitrate, it is inferior in low audio quality as compared to MP4.
  • RMVB can play only in RealPlayer (which is outdated and obsolete now), and with other multimedia and portable players, it has shown poor compatibility with playback issues. Moreover, RMVB format is unable to run smoothly, which hampers the overall experience.
  • An array of web video standards, devices, and programs like tablets, TVs, gaming consoles and others do not support RMVB file format.
  • With advanced technology and video coding – , users want better video quality.

3. The Comparison Between Convert RMVB/RM to MP4 Online and on Desktop

When it comes to converting RMVB/RM to MP4 format, you can either opt for online converters or desktop software. Both of the methods have their own pros and cons and depending on what your requirements are, and you can go for the most suitable one. To help you with your decision, a round-up of associated pros and cons of online and desktop software are given below.

Converter/Software Online RMVB(RM) Converter Desktop RMVB(RM)Converter
  • The majority of the online converters are available for free.
  • Simple to use interface and lightweight.
  • Does not need installation and registration.
  • They are compatible with most of the browsers.
  • Support a decent list of audio and video formats.
  • Allows converting RMVB to MP4 at fast speed.
  • Support converting all popular video and audio formats.
  • Support an array of additional features like editing tools, burning DVDs, video downloads and others.
  • Stable and safe to use with fewer bugs.
  • Allows setting desired parameters of the converted file.
  • Allows batch conversion of multiple files.
  • Need an Internet connection to work.
  • No option for setting advanced video settings for the conversion process.
  • Most of them do not support batch conversion of files.
  • The majority of desktop converters are for a charge.
  • Need installation and registration.

Considering the features and above-listed pros and cons, it can be concluded that Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is the best RMVB to MP4 Online converter alternative.

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Christine Smith

Christine Smith

chief Editor

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