Convert WAV to MP3
Turn WAV exports from recorders and audio software into MP3 for sharing and playback. An hour of WAV (about 600 MB) becomes about 80 MB as 192 kbps MP3.
Settings
How to use
- 1
Add audio or video
MP3, WAV, M4A, FLAC and other audio files, or video files such as MP4 and MOV to extract the audio from.
- 2
Choose format and bitrate
Pick MP3, M4A, WAV, AAC, OGG, OPUS, FLAC or AIFF. You can also downmix to mono or change the sample rate.
- 3
Convert and save
Press Run. Multiple files are processed in turn and can be saved together as a ZIP.
WAV versus MP3
WAV is uncompressed PCM audio; at CD quality it takes about 10 MB per minute. MP3 is a lossy format that discards components the ear barely notices; at 192 kbps it takes about 1.4 MB per minute.
Keep the original WAV. Converting the MP3 back to WAV does not recover what was discarded.
Frequently asked questions
How much quality is lost?
At 192 kbps or above, the difference is hard to hear on ordinary equipment. At 128 kbps, slight differences may appear in the high frequencies.
Can I convert AIFF?
Yes. AIFF exports from Mac recording software can be dropped directly.
Do very large WAV files work?
Yes. Conversion streams the file, so multi-gigabyte WAVs do not exhaust memory.
Can I make it mono?
Yes. Choose Mono under Channels to roughly halve the file size again — no audible difference for speech.
Help us improve the service
If a conversion fails, sending us the circumstances helps us track down the cause. Knowing which devices and formats fail most often, and how long processing takes, lets us revise the supported formats and fix the bugs behind them. If you don't mind, leaving this on is a real help.
What is sent
The tool you used and the settings you chose (output format, quality, etc.), your device specs (GPU, memory, core count), the input format with a rough size, how many files succeeded or failed and how long it took, and the error type and details when something fails.
What is never sent
The files themselves, file names, text, subtitles or prompts you add to a video, and IP addresses. The data goes only to this site's own server, never to a third-party service.