AUDIO TOOLS / DEVTOOLS
WAV to MP3
Convert WAV audio files to compact MP3 files in your browser.
Accepted input: WAV · Maximum file size: 50 MB. The audio stays on this device. The first conversion downloads a 32 MB WebAssembly engine from this site.
Conversion uses FFmpeg WebAssembly in a browser worker. Your audio file is not uploaded. MP3 and OGG output are lossy; MP3 to WAV cannot restore detail lost during MP3 encoding.
ABOUT THIS TOOL
What WAV to MP3 does
Convert an uncompressed WAV recording to MP3 using a browser-based WebAssembly audio engine. Select a bitrate and download the encoded audio without uploading the source file.
Useful for making voice recordings and music files smaller for sharing or playback on devices that support MP3.
How to use WAV to MP3
- Choose a WAV audio file within the displayed size limit.
- Select an MP3 bitrate to balance file size and audio quality.
- Convert locally, preview the MP3, and download it.
ANSWERS AND DETAILS
Frequently asked questions
What does this tool do?
Convert an uncompressed WAV recording to MP3 using a browser-based WebAssembly audio engine. Select a bitrate and download the encoded audio without uploading the source file.
When is this tool useful?
Useful for making voice recordings and music files smaller for sharing or playback on devices that support MP3.
Is my input uploaded?
No. This tool runs in your browser and does not send the value you enter to a processing server.