MP3 Converter

Convert MP3 files to WAV, FLAC, M4A and more in your browser — nothing is uploaded.

MP3, WAV, FLAC, M4A, M4B, MP4, AAC, OGA or WEBA, one or many. Drop them here or paste with ⌘V / Ctrl+V. Choose what each becomes on its row.

Runs on your device. Files are read and converted in your browser and aren't uploaded.

MP3

Lossy
Plays everywhere
Small files

The audio format almost everything plays. MP3 makes small files by leaving out detail most ears won't miss, which makes it the safe choice for music, podcasts and voice notes you want to share, upload or keep on a phone.

Learn more about MP3 files

An MP3 is lossy. Into WAV and FLAC its sound is kept exactly as it is now, in a bigger file (it can't get back what was lost); into another lossy format it's encoded again, so choose a bitrate at least as high as the original's.

MP3 files can be up to 100 MB and 30 minutes long (an MP3 is decoded whole, in memory).
Making M4A, MP4, M4B or AAC needs the browser's AAC encoder (Chrome, Edge and Safari — not Firefox yet); OGA and WEBA its Opus encoder; MP3, WAV and FLAC are made in any modern browser.

How to do it

Choose your MP3 files, or drop them on the page — as many as you like.
Each starts as a WAV; pick another format for every file with Convert to in Settings, or for one file on its row.
Convert all, then download each file, or all of them in one .zip.