7 Best Online Audio Editor Recommended (2022 Updated)

As a music lover who likes to listen to music, you may have downloaded thousands of MP3 music files to your cell phone or hard disk. Sometimes you may need to edit the MP3 files, for example, you are dancing and you need to edit the music to fit the movements just right.

If you need to use a lot of advanced functions, then a professional audio editing software is your best choice.

But if you only need simple audio editing functions, then using audio editing software will be too complicated and redundant, and an online audio editor will be your ideal choice.

This article will introduce 7 of the best online audio editor that can help you quickly complete your audio editing, and most of them are free to use.

best online audio editor

123APPS MP3 cutter

best online audio editor

MP3cut is a very versatile tool which is ideal to help you edit MP3 audio files. Besides MP3, it also supports 150 audio formats.

To satisfy different users, it also provides many ways to import MP3 files, such as from computer folders, Dropbox, Google Cloud Drive or URL links.

You can go directly to its home page and click on Audio Cutter, Audio Joiner or Audio Converter. In other words, it also has the function of converting or merging MP3 files online.

In addition, you can use this useful online audio editor to add fade-in or fade-out effects and even create your own personalized iPhone ringtones.


  • Easy to use, you can easily split or merge MP3 files.
  • You can upload files from your computer, Google Cloud Drive, Dropbox or a web site.
  • Fade-in and fade-out function.
  • Clear home page structure to guide users.


  • Uploading audio files that are too large is very time consuming.
  • Adobe Flash needs to be installed on the computer first.
  • Some ads will be displayed on the screen and affect your operation.
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Magicode Online MP3 Cutter

best online audio editor

If you are looking for a free online audio editor with basic features, then Magicode Online MP3 Cutter is a pretty good choice.

It doesn’t contain complicated features and operations, it provides a great editing platform that allows you to edit any MP3 file without affecting the original audio quality. You don’t have to worry about the file size either, no matter how big the audio file is, this tool will be able to handle it.

In addition, this site uses the new HTML5 so that you can enjoy the best experience. Compared to other similar MP3 editing tools on the market, it does not re-encode the MP3 tracks so that the output quality remains the same as the original file.

However, you must note that it does not have a timeline function, so it does not allow you to adjust the cutting range very precisely. It is also not possible to select other output formats.


  • No limit on file upload size.
  • Audio files will not be damaged by cutting.
  • The site uses the new HTML5 standard.


  • No precise selection of cutting range.


best online audio editor

TwistedWave Online is considered by many as an advanced online audio editor with a lot of thoughtful design. It allows you to import MP3 files from your local hard drive, SoundCloud site or Google Cloud Drive.

But be aware that it can only handle one MP3 file at a time, so if you have many MP3 files to edit, you have to import them one by one.

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Of course, it is also very powerful, allowing you to delete unwanted parts of the content, add fade-in or fade-out effects, adjust the volume or adjust the waveform of the audio.

It is worth mentioning that it will change the bit rate of the MP3 when you are ready to export the file. In addition, you can download the edited MP3 files directly, or save them directly to your Google Cloud Drive and SoundCloud account.

For more advanced features, you can consider paying for the Pro version.


  • Remove unwanted sound content.
  • Support for uploading MP3 files from your computer, Google Cloud Drive or SoundCloud.
  • Adjustable MP3 bit rate.
  • Allows you to record audio tracks.


  • Only one audio file can be processed at a time.
  • Free account only works with mono.


best online audio editor

AudioTrimmer is a professional online audio editor that is widely used by a lot of users. With this online MP3 editing tool, you can easily handle your MP3 tracks.

It can edit MP3 audio to the length you specify and change the bit rate of the output file. Its editing process is simple and fast, and it allows you to invert MP3 tracks and add fade-in or fade-out effects.

Best of all, you can use this tool on your tablet or cell phone, and the device compatibility is excellent.


  • Flexible adjustment of MP3 file bit rate.
  • Reversible MP3 track.
  • Works well on tablets and smartphones.
  • Supports adding fade-in or fade-out effects.


  • Can only edit MP3 files up to 100 MB.
  • Can only export to MP3 or M4R format.

Cut MP3 Online

best online audio editor

MP3 Cut is another useful online audio editor that allows you to cut MP3 audio files without decoding them.

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Even an average user without any professional skills can operate this tool independently to cut your favorite music into unique mobile ringtones. With just a few clicks you can adjust the audio files without losing the sound quality.


  • Easy to use.
  • It’s easy to use and it doesn’t affect the audio quality at all after cutting the MP3.
  • Ideal way to create your own mobile ringtones.


  • Lack of editing function.
  • Only drag and drop to select the approximate cut range.

Toolur MP3 Cutter

best online audio editor

Toolur MP3 Cutter is an online audio editor and ringtone creator. It can cut and extract the desired music clips from your MP3 files.

In addition, you can precisely adjust the duration of audio files, set fade-in or fade-out effects and adjust the volume. It also allows you to convert video formats MP4 or WAV to MP3 effortlessly.


Adjust the volume and add fade-in and fade-out effects.

Editing and converting the audio content of the video.

The files can be saved in MP3, M4R or other formats and you can create mobile ringtones.


The maximum file size is 300 MB.

Sometimes the uploading speed of MP3 files is slow.


The above is the introduction of the best online audio editor, if you only need to do simple splitting and editing of audio files, then all the above introduced applications can meet your needs.

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