Audio Compressor

Media.io allows you to compress audio files online for free and without losing quality.

Easily compress MP3, WAV, M4A, AAC, FLAC, M4B, OGG, APE audio files in 3 simple steps.

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*Tips: Click to learn how to compress video files with ease >>

How to compress audio files?

Step 1: Upload Audio Files

Click Choose File to import or drag & drop any audio format files to Media.io online audio size reducer.

Step 2: Compress Audio File

Choose your desired audio quality to reduce audio size, then click Compress to run compressing process.

Step 3: Save the Compressed Audio

Download the compressed audio files or save them to Dropbox or Google Drive directly.

Choose other online audio tools if needed:

Audio Compressor Online

If you try to compress the size of an audio file without losing the high quality, then try Media.io for reducing audio file size. It's the best AI audio minimizer for compressing any mp3 file, recording, songs, youtube audio, etc. Shrink the audio files under all the formats.

Only need one button click to quickly make the audio file smaller. Compressed audio files can be saved to Cloud storage like Google Drive or Dropbox directly! Just give it a shot.

Why choose Media.io to compress audio?

Online Reducer & Convenient to Share

You can compress audio files through Media.io on any web browser online and can save the resized audio filess to Dropbox and share on social media.

Compress Any Audio Formats & Size

Media.io can resize audio file online free within several clicks. You can compress MP3, WAV, M4A, AAC, FLAC, OGG and other audio files in any format, any audio size.

Smart Audio Output Settings

Smart audio resizer to resize audio online free in one click, make further customization like audio Quality, Bitrate, Output Size, and Format.

No Watermark Added & No File Limits

Resize audio/video online without any watermark added. You can compress the audio files without quantity limits after signing up, it is free for audio compression.

Privacy Security

A secure HTTPS (SSL) connection website to protect your privacy, all your uploaded and compressed files will be automatically deleted from our servers in a few hours.

Fast Audio Compression Speed

This robust song/sound/voice compressor is designed to quickly yet correctly reconstruct your file's original data. Your demand for efficiency is our pursuit!

Convert Audio

Remove Vocal

Convert Audio to Text

Remove Audio Noise

Extract Acapella

Remix Song

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FAQs about online free audio compressor

1. How do I reduce the size of an audio file?

Audio file size is related to its format, encoder, sample rate, and bitrate. Generally speaking, changing the bitrate can make the audio file smaller, the higher the bitrate, the bigger your size is. Media.io helps change audio bitrate from 320Kbps to 32Kbps with least quality loss.
2. How do I compress an audio file on my phone?

Media.io can work on phone. Just open the webpage from your mobile browser, and choose the audio files you need to compress by starting clicking on the Choose Files button. It's so easy and convenient.
3. How many audio files can I compress once a time?

With Media.io, you can compress 2 audio files at a time. But you can free compress 10 times a day, and more premium services will be offered after a signup or purchase.
Alternatively, you can consider choosing desktop UniConverter for efficiently batch audio compression.
4. What's the maximum audio file size for Media.io?

Media.io supports in compressing an audio file less than 1GB. Based on a large amount of surveys, almost all users are satisfied with it.