Convert WAV to MP3 offline by JavaScript

Convert WAV to MP3 offline

Convert local WAV files to MP3 files offline by JavaScript in your web browser without any software downloads or file uploads!

Files:

Target:

Audio bitrate:

Sample rate:

Show conversion logs

OUTPUT FILES:

#	File Name	File Size	Actions

How to convert WAV to MP3 offline

Choose local WAV files, choose "MP3" as target audio format, then click the "CONVERT OFFLINE" button to start offline conversions in bulk. File size can be up to 2GB. Please note this offline audio converter only works in web browsers that support new technologies such as WebAssembly, Shared Array Buffer and Site Isolation.

Name	WAV	MP3
Full name	Waveform Audio File Format	MPEG-1 or MPEG-2 Audio Layer III
File extension	.wav .wave	.mp3
MIME	audio/vnd.wave, audio/wav, audio/wave, audio/x-wav	audio/mpeg, audio/MPA, audio/mpa-robust
Developed by	Microsoft & IBM	Fraunhofer Institute
Type of format	Audio file format, container format	Digital audio
Introduction	Waveform Audio File Format is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs. It is the main format used on Windows systems for raw and typically uncompressed audio. The usual bitstream encoding is the linear pulse-code modulation (LPCM) format.	MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio which uses a form of lossy data compression. It is a common audio format for consumer audio streaming or storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players.