JS Audio Converter

-- Convert audio files & no need to upload files

Free online audio converter. Using HTML5 and FFMPEG.JS technology, it is directly converted in the browser. Protecting data will not be stolen. No need to wait, the conversion speed is faster. The traffic overhead is smaller.
This tool supports the conversion of the following audio file formats: MP3, WAV, OGG, AAC, M4A, M4R, FLAC, WMA, OPUS, AIFF, MMF. MP3 is a popular audio format. WAV is the original audio data format. AAC is an audio format with a higher compression ratio. M4A and M4R are file formats supported by Apple devices. WMA is a format developed by Microsoft. OPUS is an audio file format developed by the Xiph.Org Foundation. It is a new generation audio format with a very high compression ratio. Use this tool you can convert M4A to MP3, MP3 to WAV, FLAC to MP3, WMA to MP3, OGG to MP3, OPUS to MP3, M4A to WAV, WAV to MP3 etc.

There are three steps to converting an audio file using this tool.

The first step is to select the file and you can click the button to open the file dialog. You can also drag files from a folder into it.
The second step is to set the format of the file you want to output, and set the parameters of the output file, such as the sampling rate, audio quality, channel number and other parameters.
In the third step, click the Convert button and wait for the conversion to complete. Then save the converted file to your computer.

The file format conversion list is as follows:

MP3 to WAV

WAV to MP3

MP3 to OGG

OGG to MP3

MP3 to AAC

AAC to MP3

MP3 to M4A

M4A to MP3

MP3 to M4R

M4R to MP3

MP3 to FLAC

FLAC to MP3

MP3 to WMA

WMA to MP3

MP3 to OPUS

OPUS to MP3

MP3 to AIFF

AIFF to MP3

MP3 to MMF

MMF to MP3

WAV to OGG

OGG to WAV

WAV to AAC

AAC to WAV

WAV to M4A

M4A to WAV

WAV to M4R

M4R to WAV

WAV to FLAC

FLAC to WAV

WAV to WMA

WMA to WAV

WAV to OPUS

OPUS to WAV

WAV to AIFF

AIFF to WAV

WAV to MMF

MMF to WAV

OGG to AAC

AAC to OGG

OGG to M4A

M4A to OGG

OGG to M4R

M4R to OGG

OGG to FLAC

FLAC to OGG

OGG to WMA

WMA to OGG

OGG to OPUS

OPUS to OGG

OGG to AIFF

AIFF to OGG

OGG to MMF

MMF to OGG

AAC to M4A

M4A to AAC

AAC to M4R

M4R to AAC

AAC to FLAC

FLAC to AAC

AAC to WMA

WMA to AAC

AAC to OPUS

OPUS to AAC

AAC to AIFF

AIFF to AAC

AAC to MMF

MMF to AAC

M4A to M4R

M4R to M4A

M4A to FLAC

FLAC to M4A

M4A to WMA

WMA to M4A

M4A to OPUS

OPUS to M4A

M4A to AIFF

AIFF to M4A

M4A to MMF

MMF to M4A

M4R to FLAC

FLAC to M4R

M4R to WMA

WMA to M4R

M4R to OPUS

OPUS to M4R

M4R to AIFF

AIFF to M4R

M4R to MMF

MMF to M4R

FLAC to WMA

WMA to FLAC

FLAC to OPUS

OPUS to FLAC

FLAC to AIFF

AIFF to FLAC

FLAC to MMF

MMF to FLAC

WMA to OPUS

OPUS to WMA

WMA to AIFF

AIFF to WMA

WMA to MMF

MMF to WMA

OPUS to AIFF

AIFF to OPUS

OPUS to MMF

MMF to OPUS

AIFF to MMF

MMF to AIFF

Free WEB Tools
Completely free. No need to download any software or plugins, nor a Flash plugin. Open the browser and you're ready to use.

HTML5 and FFMPEG.JS
Use HTML5 audio technology, no need to upload audio files to the server. Use FFMPEG.JS technology to convert files directly in the browser. So your files won't leave your computer.

Simple & Powerful
Simple web interface. You can also complete the operation without the help of a professional technician. There are no complicated configurations. No additional expertise is required.