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15 April 2021  Jennifer Thatcher  Technology Manager of Test Dept.
 

Summary
Both of MP4 and MP3 are the common audio formats. MP3 is a way of audio encoding but also a format of data compress. MP4 is the standard compression format of audio and video information. Compared with MP3, MP4 can hold more contents, including audios, videos and subtitles. In this essay, we will talk about how to convert MP3 to MP4 video online.



Part 1: How to Convert MP3 to MP4 Video Online?

how to convert mp3 to mp4 video
Generally, people prefer to use the online tool to convert formats because they don’t need to install any software or the memory space will be taken up.
Next, we will show you how to convert MP3 to MP4 video with the online tool, ZAMZAR. Here are the steps:
Get access to the online tool, ZAMZAR (link: https ://www.zamzar.com/convert/mp3-to-mp4/). Then, click on [Add Files] to upload the target file. Then, select a format, such as MP4. After that, click on [Convert Now] to convert MP3 to MP4 video and finally download the converted file.
how to convert mp3 to mp4 video with zamzar
The steps are similar when you use the other online converters. But this method is not completely safe. For example, the network environment should be stable in the whole process. Otherwise, the online services may fail. Therefore, if you want to convert different formats, we will recommend the format conversion software. Next, we will introduce the simple and useful video format converter.

Part 2: Useful Video Editing Tool

We recommend Renee Video Editor which can not only convert formats but also edit videos.

① What is Renee Video Editor?

Renee Video Editor is the multifunctional video editing software with which you can convert video formats, such as WMV, AVI, MP4, M4A, MOV, MKV and the other video formats, but also save the format with different device specifications. What’s more, you can merge and cut videos, crop video screen, add subtitles/ watermark/filters/background music and play multiple videos at the same screen. No matter you are a video beginner or a professional video producer, you can enjoy this software.
Renee Video Editor – Multi-function Video Editing SoftwareRenee Video Editor professional video edit tools

Separate videos with different parametersUsers can separate videos into equal clips by time, size and self-set parameter.

Cut Videos & AudiosUsers are free to cut videos and audios clips by setting start and end time.

Multiple Edit ToolsMerge, crop, rotate, cut and transform video easily. Change and add background music, subtitles and watermark to video.

Format ConversionSupport to convert videos and audios into different formats.

Separate videosSeparate videos into equal clips by time, size and self-set parameter.

Cut Videos & AudiosCut videos and audios clips by setting start and end time.

Format ConversionConvert videos and audios into different formats.

Free TrialFree TrialDownload

3000 users have downloaded and used Renee Video Editor!

② How to Convert MP3 to MP4 with Renee Video Editor?

It is easy to convert MP3 to MP4 video with Renee Video Editor. Here are the steps:
Step 1: Download and install Renee Video Editor. Open the software and get into [Advanced Cutter].
open advanced cutter in renee video editor
Functions of Renee Video Editor:
Crop: Crop video to the desired area
Joiner: Combine multiple videos/audios into one
Rotate: Rotate video in 90/180/270 degree and flip videos horizontally or vertically
Add music: Adjust volume, select the sound track and remove the original sounds
Split: Split large video/audio file into clips
Watermark: Add text, image, video or GIF watermark into video, or create overlay video
Video split screen: Divide the screen to play one or more videos at the same time
Video Enhancement: Improve video quality
Video Compression: Compress video size without reducing its quality
GIF Maker: Create the animated GIFs
Subtitle/Add Text: Add external subtitles and text into videos
Filter/Adjust speed: Adjust brightness, contrast, saturation, filters and speed
Advanced Cutter: Cut videos, crop screen, add watermark/subtitles/filters/background music
Easy Cutter: Quickly cut videos
Batch Cutter: Cut multiple videos/audios in bulk
Step 2: Then, click on [Add File] to select the target MP3 file.
add files in advanced cutter in renee video editor
Step 3: Set the start and end time to cut the video. After that, select [MP4] as the output format and finally click on [Start] to convert MP3 to MP4.
convert mp3 to mp4 video with renee video editor