Convert any audio file to MP3 format online for free. Fast, secure, and easy-to-use audio to MP3 converter with no software installation required.
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Max file size: 50 MBMax duration: 30 min
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Drag and drop your WAV file, or click to browse for it.
Choose MP3 as the output and click Convert. The conversion runs on our servers, so your device does none of the work.
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How the two formats differ on the things that change your result.
| Specification | WAV (source) | MP3 (result) |
|---|---|---|
| Container | RIFF WAVE | MPEG-1/2 Audio Layer III |
| Developed by | Microsoft / IBM | Fraunhofer IIS / MPEG |
| Introduced | 1991 | 1993 |
| Audio codecs | PCM | MP3 |
| Compression | Uncompressed | Lossy |
| Max sample rate | 192 kHz | 48 kHz |
| Max channels | 8 | 2 |
| Gapless playback | Yes | Partial |
| Metadata / tags | RIFF INFO (limited) | ID3v2 |
| Approx. file size | 10–32 MB per minute | 0.96–2.4 MB per minute |
| Licensing | Royalty-free | Patents expired |
| Plays natively on | Native: Web browsers, Windows, macOS, iOS, Android · Needs a player: Smart TVs | Native: Web browsers, Windows, macOS, iOS, Android, Smart TVs |
| Best for | studio editing, mastering, sample libraries | music libraries, podcasts, sharing with anyone |
This is the step where quality is actually decided. WAV holds the full signal; MP3 throws away part of it to shrink the file, so pick the bitrate deliberately. Between 128 and 320 kbps covers most listening, and the file drops from around 21 MB per minute to roughly 1.7 MB per minute.
If your source runs above 48 kHz, it will be resampled: MP3 cannot store the 192 kHz that WAV allows.
WAV supports up to 8 channels, MP3 up to 2. Surround material is folded down rather than carried through untouched.
The two formats are aimed at different jobs. WAV is typically used for studio editing, mastering, sample libraries, while MP3 is the usual pick for music libraries, podcasts, sharing with anyone. That difference in intent is what most of the specification gaps above come from.
Expect metadata to be rewritten rather than copied: RIFF INFO (limited) in the source becomes ID3v2 in the result. Standard fields map cleanly; niche custom tags often do not.
This page converts WAV files, stored in the RIFF WAVE container since 1991, into MP3, which uses MPEG-1/2 Audio Layer III and dates from 1993. The differences between the two containers decide what changes in the result.
WAV comes from Microsoft / IBM and dates to 1991. It holds uncompressed audio (PCM), and that sets the ceiling for anything converted out of it.
MP3 comes from Fraunhofer IIS / MPEG and dates to 1993. It carries lossy-compressed audio (MP3), and without installing anything it plays on web browsers, Windows, macOS, iOS, Android, and smart TVs.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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