Convert WAV to MP3
Convert your WAV audio files to MP3 directly in your browser.
How to convert audio in 3 steps
Choose a WAV audio file.
Click convert to MP3.
Download your MP3 audio.
Format descriptions
WAV — WAV is a lossless audio format developed by Microsoft and IBM. It delivers faithful quality but very large files, and is often used in production.
MP3 — MP3 is the best-known compressed audio format. It trades a little quality for much smaller files, making it perfect for music and audiobooks.
Technical comparison: WAV vs MP3
Technical breakdown of the WAV and MP3 specifications: compression, colour, transparency and animation support.
| Property | WAV | MP3 |
|---|---|---|
| Specification | WAV (Waveform Audio File Format) | MP3 (MPEG-1 Audio Layer III) |
| Media type | Audio | Audio |
| Compression | Uncompressed · Linear PCM | Lossy · Psychoacoustic model |
| Color space / bit depth | 16/24/32-bit float | 16-bit, 44.1 kHz |
| Transparency | Not applicable | Not applicable |
| Animation | No (static) | No (static) |
| Best for | WAV is a lossless audio format developed by Microsoft and IBM. It delivers faithful quality but very large files, and is often used in production. | MP3 is the best-known compressed audio format. It trades a little quality for much smaller files, making it perfect for music and audiobooks. |
What happens when converting WAV to MP3?
The WAV data is decoded inside your browser with WebAssembly and re-encoded to the MP3 specification, so no file is ever uploaded to a server. Both formats rely on comparable compression, so file size and perceived quality stay in the same range.
Frequently Asked Questions
What is audio conversion?
Audio conversion changes an audio file from one format to another, for example from WAV to MP3, while keeping the audio content.
Are my audio files uploaded?
No. This tool processes audio files directly in your browser. Your audio files are never sent to a server.
Which audio formats are supported?
This tool converts WAV audio files to MP3, all in your browser.
Is it really free and unlimited?
Yes, the tool is completely free and you can convert as many audio files as you want, with no limits.
Does it work on mobile too?
Yes, it works on any modern device, including smartphones, tablets and desktop computers.
Which format will the result be in?
The converted file will always be in MP3 format, ready to download and use.
About the audio converter
Convert WAV to MP3 audio online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
See also:
- Audio Converters
- Compress Audio OnlineCompress MP3, WAV, OGG, M4A, AAC, OGA, FLAC, ALAC, AIFF, OPUS, M4B and AC3 audio files online for free. Reduce the file size of your audio recordings while keeping good quality. Everything happens in your browser: audio files are never uploaded to a server, and you need no downloads or sign-up to get started.
- Convert WAV to OGGConvert WAV to OGG audio online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
- Convert WAV to M4AConvert WAV to M4A audio online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
- Convert WAV to AACConvert WAV to AAC audio online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.