Audio converter
Convert between MP3, WAV, M4A, AAC, OGG, Opus and WebM audio — or pull the sound from a video.
Frequently asked questions
Which MP3 encoder do you use?
MP3 files are made in your browser with the open-source LAME encoder. This product uses LAME (lame.sourceforge.io).
How do I convert a WhatsApp voice note (OPUS/OGG) to MP3?
Choose the .opus or .ogg file, keep MP3 selected and press Convert audio. You can add many voice notes at once.
How do I convert M4A to MP3?
Choose the M4A file and press Convert audio. 192 kbps keeps the sound practically identical while staying small.
Which format should I choose?
MP3 plays on every phone, car stereo and computer. WAV is uncompressed for editing. M4A suits iPhones. OGG/Opus gives the smallest files for voice.
Is Audio converter free?
Yes. Audio converter is free to use. You get 3 free conversions a day without an account, and unlimited use when you sign in with Google.
Are my files uploaded?
No. The conversion runs inside your browser, so your files stay on your device and are never sent to our servers.
Does it work on mobile?
Yes. PixKaro works in Chrome, Safari, Edge and Firefox on Android, iPhone, Windows and Mac.