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Wondershare UniConverter

  • Merge multiple MP3 files into one without losing any quality.
  • Edit MP3 files with trimming, cutting, changing sample rate, etc.
  • Support 1000+ formats including MP3, WAV, WMA, MP4, etc.
  • Versatile toolbox combines screen recorder, GIF maker, fixing video metadata, etc.
mp3 joiner online

Top 8 MP3 Joiners Online Free: How to Merge MP3 Files Online

by Christine Smith • 2024-02-27 11:22:28 • Proven solutions

Joining multiple MP3 files helps in creating audio presentations, tutorials, playlist and other files. To merge MP3 without losing quality and in a flawless manner, several tools are available. Online tools are popularly used as they need no software installation, are simple and free to use. Below listed are the best online MP3 joiners for your reference.

Part 1. Online MP3 Merger Alternative: Join Multiple MP3 Files on Windows/Mac

If you are looking for an alternative to online tools for merging MP3, Wondershare UniConverte works as the best choice. The Windows and Mac-based software supports all popular formats like MP3, WAV, AAC, and others for merging and other processes. You can trim the unwanted parts of the file and perform other editing functions using the software. Option to select the output format and the quality is also available with the software.

video converter icon Wondershare UniConverter - Merge MP3 Files Easily

wondershare uniconverter
  • Merge MP3 files into one easily without losing any quality on Windows/Mac.
  • Other editing functions, including cutting, trimming, changing bitrate, etc.
  • Convert MP3 files to 1000+ formats, and optimized presets for iPhone, iPad, Huawei phone, etc.
  • 90X faster conversion speed than common converters with unique APEXTRANS technology.
  • Burn and customize videos to your DVD or Blu-ray disc with free DVD menu templates.
  • Download or record videos from YouTube and other 10,000+ video sharing sites.
  • Transfer videos from computer to iPhone, iPad and other devices directly and vice versa.
  • Versatile toolbox: Add video metadata, GIF maker, video compressor and screen recorder.
  • Supported OS: Windows 10/8/7/XP/Vista, macOS 11 Big Sur, 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6.
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Steps to merge several MP3 using Wondershare UniConverter

Step 1 Add several MP3 to Wondershare MP3 merger

Download, install and open Wondershare UniConverter software on your system. Clicking on the +Add Files icon from the Merger section allows adding local MP3 files. Multiple files, as well as an entire folder, can also be added.

add MP3 files need to merge

Step 2 Choose the output format

The added files appear on the software with details and a thumbnail image. Expand the options at the Output Format tab and from the Audio list, select the output format and the quality.

choose output format before merging MP3

Step 3 Merge MP3 files without losing quality

Next, the system location to save the merged file can be selected from the File Location tab. Finally, start the file merging process by clicking on the Start All button.

merge MP3 without losing quality



If you're Mac user, here is a step-by-step tutorial of how to convert VOB to MP4 on Mac. Just move to How to Convert VOB to MP4 on Mac Easily >> to learn more.

Part 2. 8 MP3 Joiners Online to Merge MP3 Songs

There is no shortage of software if you want to merge MP3 online. These tools work from the browser interface and support basic merging functions. Listed below are the best tools to combine MP3 online.

1. APowersoft Free Online Audio Editor:

This is free to use online tool that facilitates merging and performing other audio editing functions. The program needs to be launched and installed if you are using it for the first time, and after that, it can be used directly from the browser interface. In addition to MP3, other audio formats like AAC, FLAC, M4A, and others are also supported. The minimalistic interface makes the merging, trimming, copying, splitting, and other tasks quick and straightforward. The tool also allows you to preview the effect of the changes in real-time. The MP3 files can be merged without any limitation to the number of files or the size.

online mp3 joiner

2. Audio Joiner:

This MP3 joiner online free tool supports all major audio formats, including MP3, for rapid combining and other functions. The program supports crossfading, and there is also an option to use playback intervals as needed. The app allows merging the unlimited number of MP3 files without any restriction.

audio joiner

3. Clideo:

This is an effective tool to merge MP3 online free and quickly. Local, online, and cloud storage files can be imported to the interface for the process. Option to crossfade the files to add them seamlessly is also available. The tool allows you to choose the sequence of the files to be merged, and the output format from the available options can also be selected.


4. FilesMerge:

To merge MP3 songs online and quickly, this works as a good tool. Local files or the URL can be added to the interface for the merging process. The maximum supported file size limit is 50M, and there is an option to select the merged file quality, encoder, sampling rate, and the number of channels. The supported output format is MP3.

files merger

5. Bear File Converter:

Though the tool is named as a file converter, it supports a wide array of other functions as well, including MP3 audio merging. MP3 files with the size of up to 50M can be added to the program for merging into single MP3 audio. You can choose the audio quality, encoder, sampling rate, as well as the channels depending on your requirements. The merged file can be downloaded from the program interface after the process is complete.

bear file converter

6. AConvert:

AConvert is a widely used online program that is known for its support to a wide range of video and audio-related functions, including MP3 merging. Using this online audio joiner MP3 tool, files from the system, URL, Google Drive, and Dropbox can be added. Maximum supported file size of 200M and an array of other formats like WAV, OGG, AAC, and others can also be processed. The merged files can be downloaded from the system interface.


7. Freeonlineeditor:

This audio joiner online MP3 tool works from the browser interface without any need for software installation. MP3 files from your system or mobile can be added to the program interface, and multiple files at a time can be added. If you require merging only a part of your audio file, choose the start and the end time. Merged file name as desired can be selected, and after the process is completed, the file can be downloaded locally.


8. MP3Cutter:

The name says MP3Cutter, but this online program also supports merging your multiple MP3 files or songs. The files to be merged can be added locally or through a URL. The order in which you want the files to be merged can be selected by simply dragging and dropping them. To achieve seamless merging, the crossfade feature is also supported. The format and the name of the merged audio file can also be changed as required. So to split and merge MP3 online, this is a good tool to consider.

mp3 cutter

The above listed are popular MP3 online merger tools that are simple in use and come with different functions and features. Online programs are simple to use, need no software download or installation, and in the majority of the cases are freely available. On the flip side, there are several drawbacks as well of using online programs like internet dependency, no support to advanced features, limitation to the file size, and the limitation to the number of files that can be added. So for professional audio merging with advanced and additional features, Wondershare UniConverter works as the best solution.

Christine Smith

Christine Smith

chief Editor

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