WAV to MP3 converter
Make a WAV recording much smaller by converting it to MP3. Choose the bitrate, in your browser, with no upload.
Drop an audio file
or drop it here, or paste. Up to 500 MB per file.
Runs in your browser. Your files are not uploaded.
Formats: the format list shows only what this browser can encode. MP3 and FLAC use an encoder that downloads the first time you choose them. M4A (AAC) is not available in every Firefox version.
Memory: audio is decoded in full, about 23 MB per minute of 48 kHz stereo, so long recordings can be slow on phones. Files that would need more than about 1 GB once decoded (about 45 minutes of 48 kHz stereo, or 90 of mono) are refused before decoding.
How to use WAV to MP3 converter
Drop one WAV file on the page.
Keep MP3 as the format and choose a bitrate; higher keeps more detail and makes a larger file.
Select Apply and wait for the conversion.
Download the MP3 and compare its size with the WAV.
Questions
No. Everything runs in your browser and the file never leaves your device.
WAV stores the sound uncompressed, while MP3 drops detail that is hard to hear.
You can convert the MP3 to WAV, but the detail MP3 removed does not return. Keep your WAV if you may edit it again.
128 to 192 kbps suits most music and speech. Pick a higher one for a file you want to keep.
Related tools
- Convert audioConvert audio to MP3, M4A, WAV, OGG, WebM or FLAC, with bitrate, sample rate and channel options.
- Compress audioMake audio files smaller by choosing a lower bitrate or a target file size.
- Extract audio from video: MP4 to MP3Save the soundtrack of an MP4, MOV, WebM or MKV video as an audio file, without re-encoding when possible.
- Audio cutter: cut MP3 and make ringtonesSelect part of a recording on the waveform and keep it, or cut it out.