Convert audio
Convert between MP3, WAV, M4A, OGG and FLAC and pick the quality, right in your browser.
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Your file is processed in your browser and is never uploaded to a server.
An audio converter that never sees your files
Need an MP3 from a huge WAV, a lossless FLAC for your archive or an M4A for your iPhone? Pick the output format and PizzaVox converts the file with FFmpeg in WebAssembly, without sending it to any server.
For compressed formats (MP3, M4A, OGG) you can choose the bitrate; WAV and FLAC are lossless and keep the full quality of the original.
How to use it
Add the audio file
Accepts MP3, WAV, M4A, AAC, OGG, OPUS, FLAC, WMA and more.
Pick format and quality
MP3 for maximum compatibility, M4A for Apple devices, OGG for the web, WAV or FLAC for lossless.
Download the result
Preview it and save the converted file.
Frequently asked questions
Which format should I choose?
MP3 works everywhere. M4A (AAC) sounds better at the same size and is ideal for iPhone. OGG (Vorbis) is open and good for the web. WAV and FLAC lose no quality: FLAC takes about half the space of WAV.
Does converting MP3 to FLAC improve quality?
No: quality lost to MP3 compression can't be recovered. The FLAC will be a perfect copy of the MP3, just bigger.
Is metadata kept?
Title, artist and album are copied when the output format supports them.
Can I convert several files at once?
One at a time for now. The engine stays loaded, so from the second file on the conversion starts immediately.