8 Best Audio Compressors Online

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best audio compressor

Audio files refer to music files. There are times when the music file that you download is of high quality and, therefore, large in size. The large size makes it difficult for people to share audio files.

People think that downloading music files in low quality means you have to download the lowest file size. However, there are many ways to compress audio files to reduce their size.

So, if you’re looking for solutions to this problem, keep on reading the article to find out the best audio compressors to compress audio. Without any further ado, let’s begin.

Best Ways to Compress Audio in Batches

Wondershare UniConverter is the best audio compressor. It is one destination to solve all your audio and video issues. Wondershare UniConverter can perform various tasks, such as reducing the file size, transmission of files to another device, burning the file size, and conversion of file formats.

This software is a complete kit of solutions for all media-related problems. Wondershare UniConverter is available for MAC as well as Windows OS. Therefore, you can use the software to compress the size of the music files without the loss of quality.

Features of Wondershare UniConverter

  • Audio/Music files compression without the loss of quality
  • Available for Windows and macOS
  • Compression and conversion of music files into multiple formats, such as WAV, M4A, MP3, and M4B
  • Reduces the file size of the audio by adjusting sample rate, bit rate, encoder, and various other parameters
  • Around 30x fast compression speed compared to any other audio compressor
  • A toolbox with extra features, such as GIF maker, Cast to Television, Fix Media Metadata, Screen Recorder, and others
  • Download videos from YouTube and any playlist to MP3 format or other audio formats by simply pasting the URL
  • Transmission of compressed files from Windows/MAC to Android/iPhone devices through a USB cable
  • Compression of music files supports batch process and conversion of more than one video at a time

Let’s move on to the steps to compress audio/music files with the help of Wondershare UniConverter.

Steps to use Wondershare UniConverter

1. Download the software and add the music files

Add audio files to UniConverter

Download the Wondershare UniConverter and open it on your MAC/PC. A ‘Convert’ tab will open. Select the ‘Add Files’ option and search for the audio file that you have to compress. You can choose more than one file at a time.

2. Select output Music/Audio format

Select output Music/Audio format

Tap on the ‘Convert all files to’ option and then select the ‘Audio’ tab. Choose a format you wish to convert your audio file into from various options.

3. Customization of audio compression

Customization of audio compression

You will notice the ‘+Create Custom’ button in the list of formats. Select that option, and a window will open. You will see various options in the window, such as sample rate, channel and bit rate, and customization of the audio encoder. You will be required to give a title to the customized file and then click on ‘Save.’

4. Conversion of audio files into a bunch

compress audio via UniConverter

Once you make all the adjustments and changes, select the ‘Convert All’ button. As soon as you click on that option, your file formats and sizes will be converted into a bunch. This process will only take a few minutes to finish.

6 Best Audio Compressors Available for Free

Multiple audio compressors are available online that perform tasks easily. But, we have prepared a list of some of the best audio compressor tools available for free.

1. Online Audio Converter

Online Audio Converter

The online audio converter was created as a platform for converting and compressing audio files. So, if you’re looking to compress a music file online, then feel free to use this site.

You can add your audio files from Google Drive, system storage, Dropbox, and URL. You just have to upload the desired file and choose the format and quality in which you want to convert your file.

In addition to this, you will have extra features to edit the audio information and make adjustments in the settings, such as channels, effect, and sample rate. After all the changes, choose the ‘Convert’ button to begin the process of compression.

Besides, if you are looking for the top GIF cropper or the best Virtual Audio Cable Alternative, click to find one.

2. MP3Smaller


MP3Smaller is an online and free service that offers the facility to compress audio file size. With the assistance of this tool, you can easily reduce the MP3 audio size. You just have to add your audio files to the site by clicking on the ‘Browse’ button. You can customize your audio files with the help of various tools offered by MP3Smaller.

To use this website, you don’t have to create an account or register yourself. There is no requirement of fee either. The maximum size of the file upload is 150 MB, and your files will be automatically removed from the site after some time.

3. Gary’s Hood

Gary's Hood

This is yet another powerful tool to convert and compress audio files online. Gary’s hood can quickly compress various audio file formats, such as AIFF, AAC, MP3, and WAV, into other formats. The audio files will be converted in some time, and they will get deleted after you download them. You will be required to save the files manually.

In this service, you can make customizations according to your wish. The highest bit rate is up to 256 kbps, and this software supports file sizes to 8 MB only.

4. YouCompress

YouCompress Audio Compressor

If you are looking for an easy and convenient audio compressor, then the best audio compressor is YouCompress. All you have to do is add the files to the audio compressor and compress all the files.

It will take a few seconds to compress the files. After downloading the files, you can erase them from the online website.

5. AConvert


AConvert is said to be the best audio compressor that provides multiple choices to reduce the size of the files. You can add the files to this tool via Google Drive, storage, Dropbox, or online.

Once you are done uploading the files, you can customize the format according to your convenience. Then, select the ‘Convert Now’ button. This will compress the files, and your files will be saved on system storage or Cloud storage

6. Online Convert

The last and the best audio compressor is Online Convert. It is a very strong and effective tool for converting and compressing audio files. You can upload the files on this tool via various sources, such as Google Drive, URL, and Dropbox.

Wait for the file to upload properly and make adjustments accordingly. After all the changes, select the ‘Convert’ button, and your file will be converted.

audio compressor online convert

Tips for getting the best results with audio compressors

To maximize the benefits of audio compressors and achieve professional-sounding results, consider the following tips:

  1. Understanding the source material: Analyze the dynamic range and characteristics of your audio source. Different instruments and vocals may require different compression settings.
  2. Experimenting with different settings: Don’t be afraid to try different threshold, ratio, attack, and release settings to find the right balance and character for your mix.
  3. Using parallel compression: Blend the compressed signal with the uncompressed signal using parallel compression techniques. This helps retain the natural dynamics while adding controlled compression.
  4. Embracing the subtleties: Sometimes, subtle compression is all that’s needed to smooth out dynamics and add cohesion to a mix. Don’t over-compress; let the music breathe.


Q: Can I use an audio compressor for live performances? A: Yes, audio compressors are commonly used in live sound setups to control dynamics and ensure a consistent audio level.

Q: Are audio compressors only used in professional studios? A: No, audio compressors are used in various settings, from home studios to professional recording facilities and live sound environments.

Q: Do I need to have technical knowledge to use an audio compressor? A: While some technical knowledge can be helpful, most audio compressors offer intuitive controls and presets that make them accessible to both beginners and experienced users.

Q: Can audio compressors be used for mastering? A: Absolutely. Audio compressors are an integral part of the mastering process, helping to shape the dynamics and overall balance of a final mix.

Q: Are software compressors as good as hardware compressors? A: Both software and hardware compressors have their advantages and can deliver excellent results. It often comes down to personal preference and the specific application.


Audio compressors are essential tools in the world of audio production. They provide dynamic control, enhance clarity, and add character to audio recordings. When choosing the best audio compressors online, consider the features, reviews, and compatibility with your setup.

Once you have your compressor, learn to use it effectively by setting the threshold, adjusting the ratio, and fine-tuning the attack and release times. Experiment with different settings and techniques to achieve the desired sound. Remember, subtlety is key to maintaining a natural and balanced mix.


Skilled software testing specialist with expertise in comparisons and research, passionate about blogging, reviews, and creating video tutorials.

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