About this Audio Converter tool
Different devices save audio in different formats: iPhones use M4A, WhatsApp voice notes are OPUS/OGG, recorders and studio apps produce large WAV files, and audiophiles use FLAC. Not every player or website accepts all of them. MP3 plays everywhere, and WAV is the standard for editing.
Convert one file or a whole batch, choose the MP3 bitrate, and switch to mono for speech to halve the size.
How to use Audio Converter
- Choose or drop your audio files.
- Choose MP3 or WAV, and the MP3 quality.
- Click Convert audio.
- Preview and download.
Features
Many input formats
WAV, M4A, AAC, OGG, OPUS, FLAC, WebM, MP3.
MP3 or WAV
Compressed for sharing, or uncompressed for editing.
Bitrate choice
128–320 kbps.
Batch
Convert many files at once.
Private
No upload.
Frequently asked questions
How do I convert WAV to MP3?
Choose the WAV file, keep MP3 selected, pick a quality and click Convert audio. MP3 files are about 10 times smaller than WAV.
Can I convert WhatsApp voice notes?
Yes. WhatsApp voice notes (.opus or .ogg) can be converted to MP3 in Chrome, Edge and Firefox.
Can I convert M4A from my iPhone to MP3?
Yes, M4A is supported.
Does converting improve quality?
No. Converting can keep quality, but cannot add detail that wasn't in the original. Converting MP3 to WAV makes the file bigger without improving the sound.
Are my files uploaded?
No. Everything runs in your browser.