The 5 Best Audio Merger and Splitter Tools for MP3 Files

Joel Lee Updated 06-09-2019

If you’ve never done it before, you should consider learning how to merge, join, combine, and split MP3 audio files. There are some nifty benefits to this, especially if you download your music.


I love Spotify and Pandora for streaming music, but there are good reasons to stick to downloading music. For example, you don’t own the music when you stream! Data usage is another big concern, which is why a lot of users still download YouTube videos as MP3s.

One big benefit of downloading music is that you can edit the files, whether to cut out extraneous bits (e.g. annoying intros) or mix a bunch of tracks into a personal mega-mix.

Interested? Here are the best free tools for merging and splitting audio files.

1. The Best Free Audio Editor: Audacity


Supported Platforms: Windows, Mac, Linux
Supported Formats: Any


Audacity is the go-to app if you’re looking for full control over the editing process. With it, you can split any bit of audio into as many pieces as you want, or you can merge as many audio files as you want in whatever order.

What’s nice is that you’ll also have access to all of Audacity’s other features, including audio filters and effects that may come in handy for music files that are problematic in some way. And the best part? Audacity skills can transfer to other endeavors, including these creative uses for Audacity.

Download: Audacity (Free)

Get started with these essential Audacity tips 7 Audacity Tips for Better Audio Editing on a Budget Here are several useful Audacity tips that will make your life much easier when editing audio, especially if you're on a budget. Read More .


2. The Best Audio Merger Tool: MP3 Toolkit


Supported Platforms: Windows
Supported Formats: AAC, FLAC, MP3, OGG, WAV, WMA, and more

MP3 Toolkit is a collection of six separate audio manipulation tools that are all useful in some way: Converter, Ripper, Tag Editor, Merger, Cutter, and Recorder. For this article, we’re most interested in the Merger and Cutter.

The Merger lets you take multiple audio files, rearrange them in whatever order you want, then export it as a single combined audio file. The Cutter lets you take a single audio file, select a start and end time, then export that selection as a separate audio file.


You can download MP3 Toolkit for free, which will be marked as Unregistered. There’s no indication of whether this version limits features or has a time limit.

Download: MP3 Toolkit (Free, $30)

3. The Best Audio Splitter Tool: mp3DirectCut


Supported Platforms: Windows
Supported Formats: AAC, MP3


mp3DirectCut is a nifty little audio editor that’s lightweight and barebones: you can’t do much with it, but it’s very good at what it can do. Basic operations include cutting, copying, pasting, and recording audio.

What sets this app apart from most is the fact that it directly manipulates audio files without having to decompress them first. Not only does this result in a faster workflow, but it also preserves the original audio quality because it doesn’t need to be re-compressed.

Other notable features include ID3 tag editing, pause detection, batch file processing, auto-division of tracks by time value, and automatic filename and tag creation when splitting tracks.

Download: mp3DirectCut (Free)

4. Another Audio Splitter Tool: Mp3Splt


Supported Platforms: Windows, Mac, Linux
Supported Formats: FLAC, MP3, OGG

First things first, make sure you download Mp3Splt-GTK rather than simply Mp3Splt (which is a command line tool that’s more bother to learn than simply using the GTK version’s graphical interface).

Like mp3DirectCut, Mp3Splt can work on an audio file without having to decompress it first, resulting in a fast workflow and no impact to audio quality. This app is much simple though: you just pick a start and end time, then export that selection as a separate audio file.

If you have an entire album as a single audio file, Mp3Splt can auto-split using CUE files that mark where each track begins and ends. Auto-split using pause detection is available as well. Exported files can have their ID3 tags edited.

Download: Mp3Splt (Free)

5. Without Audio Merger Software? Command Line!

Supported Platforms: Windows, Mac, Linux
Supported Formats: Any

On Windows

One of the nifty things about Windows is that you can do a lot of cool stuff using the base command line utilities that come with the operating system. The copy command, for example, can actually merge MP3s into one.

Start by opening a Command Prompt window. You can do this by searching cmd in the Start Menu or by selecting Command Prompt in the Power Menu (keyboard shortcut Windows + X).

In the Command Prompt, navigate to the directory where your MP3s are stored. For me, that would be my Downloads folder:

cd C:\Users\Joel\Downloads

Then, use the following command:

copy /b file1.mp3 + file2.mp3 newfile.mp3

This basically takes the contents of file1.mp3 and file2.mp3 and combines them into a third file called newfile.mp3. You can have as many source files as you want as long as you separate them with a + sign, like so:

copy /b file1.mp3 + file2.mp3 + file3.mp3 + file4.mp3 newfile.mp3

The downside to this method is that it’s a literal concatenation of files, so the ID3 tags for all source MP3s except the first will be lost somewhere in the middle of the resulting MP3. Also check these essential CMD commands 15 Windows Command Prompt (CMD) Commands You Must Know The command prompt is still a powerful Windows tool. Here are the most useful CMD commands every Windows user needs to know. Read More and these tips for improving Command Prompt 7 Quick Tips to Improve the Windows Command Prompt You should learn more about the Command Prompt. It's a more valuable resource than most people realize. These tips will improve your command line experience, even if you're a seasoned user. Read More .

On Linux and Mac

On Linux and Mac, you can use this command instead:

cat file1.mp3 file2.mp3 file3.mp3 > newfile.mp3

Other Tips for Managing Your Music

After splitting and merging a bunch of MP3s, you might find that you have a bit of a mess on your hands. Music management can be frustrating, especially if you’re fussy about file names and proper organization.

In that case, check out these music management tools. They provide easy ways to do things like mass renaming of files according to a pattern, batch editing of ID3 tags, etc.

Go even further with the best free audio editing software The Best Free Audio Editing Software Editing audio can be a daunting task. However, here are some great audio editing software to help you overcome any challenges. Read More .

Related topics: Audio Editor, Music Management.

Affiliate Disclosure: By buying the products we recommend, you help keep the site alive. Read more.

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  1. William
    January 28, 2019 at 10:03 am

    I'm using Joyoshare Media Cutter to cut and merge music files. It's not totally free, but the cut file quaility is almost the same with the original one. When I have more music files need to be cut, I'd like to upgrade to full version.

  2. vince777
    January 26, 2019 at 8:12 pm

    Another app I want suggest is Kanto Audio Mix... it not only allows you to split and merge music files, it has a lot of extra feature like vocal remover, equalizer, crossfade effects, etc.

  3. Max
    March 6, 2018 at 12:58 am

    The best software I've ever come across for this task was not free but it was worth the small price. PolderBits Sound Recorder and Editor. It made the task simple and easy.

    Unfortunately it's no longer an option. In order to use the software it had to perform an online validation check every time. Sadly, the developer passed away without ensuring that his website would be maintained. Such a waste of that outstanding software.

    If I ever find software that can match PolderBits I'll be buying it.

  4. cubilas
    April 16, 2017 at 6:34 pm

    The command-line method does NOT work on any file type I have tried, including WAV files and RAW audio. It does combine the files, but it does not rewrite the header information, leaving you with all the files combined but the ability to only access the first file in the series.

  5. mbf
    March 20, 2017 at 12:22 am

    The article is silent on the quality of the output an audiophile would like to know the effect on quality of output audio from these software

  6. Mike
    January 23, 2017 at 10:37 am

    another cool app is acoustica basica. It cuts the Mp3 perfectly as it is.

  7. Anonymous
    July 14, 2015 at 5:59 pm

    I want to merge audiobook files into very large files, but many of the utilities do not seem to update the file length properly in the header so that as you play back the merged file, the player can't keep track of it's position correctly. (eg. The player tells me I'm 2 minutes in to the track when I might actually be 2 minutes into the third merged file - maybe 2 hours and two minutes to the total mp3 file.) This means that you can't cue back to where you left-off if you stop the playback.

  8. RJC
    April 26, 2015 at 2:51 pm

    MPe3split is useless. It may split files but where does it put them? Nobody knows.

  9. chock
    December 26, 2014 at 9:17 pm not only cuts your files but reduces the sound quality down to 32kbps. So, it is not usable for high quality audio.

  10. Jessica Cam W.
    August 5, 2010 at 5:01 am

    Wow, so many MP3DirectCut recommendations! Thanks, guys! Lossless encoding is always desirable.

  11. sideunes
    August 3, 2010 at 9:56 pm

    i use mp3directcut [Broken Link Removed]

  12. Wolfgang Beer
    August 3, 2010 at 4:27 pm

    another really cool and handy app for splitting a mixtape *.mp3 file that comes with a cue file for track information is cue file spltter from < [Broken Link Removed]

  13. Wolfgang Beer
    August 3, 2010 at 2:27 pm

    another really cool and handy app for splitting a mixtape *.mp3 file that comes with a cue file for track information is cue file spltter from [Broken Link Removed]

    • Jessica Cam W.
      August 4, 2010 at 3:34 am

      Awesome, thanks for sharing!

  14. com4myst@blogspot
    August 3, 2010 at 8:25 am

    mm I thing #audacity is missing here

    • Jessica Cam W.
      August 4, 2010 at 3:34 am

      Yes, Audacity would be part of the DIY tools in this list. I just thought I'd introduce Myna, the 'web-based version' of Audacity so people that don't usually need a full audio editor can still split/join files.

  15. Janeiro
    August 3, 2010 at 8:43 am is also very useful. and no need to upload a file

  16. Janeiro
    August 3, 2010 at 6:43 am is also very useful. and no need to upload a file

    • Jessica Cam W.
      August 4, 2010 at 3:16 am

      Ooh, nice discovery, thanks!