Developed by RealNetworks, RealMedia Variable Bitrate (RMVB) is a variable bitrate extension the RealMedia digital container format. With an extension, .rmvb, the format is mainly used for storing multimedia content locally. However, since RMVB has limited support and compatibility, playing the format on all types of devices and players can be made possible by converting it to a more popular format like MP4. To process RMVB to MP4 conversion, a number of online and offline tools are available. Know about these programs in the following parts.

• Part 1. How to Convert RMVB to MP4 in a Fast and Best Way
• Part 2. Free Online RMVB to MP4 Converter

Part 1. How to Convert RMVB to MP4 in a Fast and Best Way

To convert your RMVB files to MP4 in high quality with additional features, UniConverter is the best tool to use. This professional desktop software works as an excellent file conversion tool that supports almost all popular formats. With the simple interface, the program supports conversion at a super fast speed. In addition to conversion, a number of other functions are also supported by software like video editing, video downloading, video transfer, and others.

Guide to convert RMVB to MP4 using UniConverter

Step 1. Launch iSkysoft RMVB to MP4 converter and import RMVB files

Run UniConverter on your PC/Mac. By default, the program opens in Convert tab. To browse and add local RMVB files, click on +Add Files option. You can also add a folder or files from other devices directly. Batch processing is supported so multiple files can be added to the interface.

Edit RMVB files (Optional)

This is an optional step and can be skipped if video customization is not required. The added RMVB files appear on program interface with their thumbnail images and file details. The editing icons for Trim, Crop, and Effect are present under the thumbnail image. Choose the desired option that will open a new Edit window. Make the changes and click on the OK button to confirm.

Step 2. Select MP4 as output format

On the top-right corner, open drop-down menu at Convert all files to: tab. From the new window, choose MP4 from the Video list. There is also an option to select the resolution of the output file as needed.

Step 3. Convert RMVB to MP4

Once all settings are done, select location on the computer to save the converted file at Output tab. Hit on Convert All button to start converting files.

Part 2. Free Online RMVB to MP4 Converter

Online converters are programs that work directly from the system browser without any need for software download or installation. These programs are free, simple, and easy to use. To facilitate RMVB to MP4 conversion, listed below are the top online tools.

Note: Online RMVB to MP4 converters are simple and free to use, but these programs have limited file size and editing support. So if you are looking for high-quality conversion with an array of additional features, UniConverter which is introduced above, is the best choice.

#1. Free File Convert

This is one of the popularly used online programs that facilitate converting your RMVB files to MP4 format. The program needs no registration or downloads and is free to use. The files for conversion can be added from a PC, URL, or Cloud storage as needed. The program allows adding a maximum of up to 5 files with a total size limit of 300MB. So if you are looking for multiple files conversion with large sized files, the program might not work.

Moreover, no editing functions are supported by the tool. A number of video, audio, archive, and other file types and formats are supported for conversion. The converted file can be downloaded on the PC from the interface after the completion of the process.

#2. Online Converter

Using Online Converter allows converting RMVB files to MP4 format in a hassle-free manner. This free online tool allows adding local or file URL for processing. The maximum file size that can be uploaded to the interface for conversion is only 200MB. For editing, the program supports cutting the video file and selecting the frame size in terms of width and height. So for users with large files and high customization requirements, the program is not an apt choice. The link for downloading converted files is made available on the interface.

#3. Zamzar

This is another popularly used online tool for file conversion. An array of formats is supported by the program including RMVB. You can either select a local file or its link for conversion as desired. The files can also be dragged and dropped. In addition to MP4, a number of other video format and file types are supported for conversion. The processed and converted file can be either downloaded or can be sent to an email as needed.