Convert MP3
The audio format that still plays everywhere. Every pair below runs in the browser. The file is not uploaded. Video and audio use FFmpeg in WebAssembly, fetched from this origin once, about 30 MB, then cached by the service worker. The clip itself is not part of that download.
This hub is the index, not the workbench. Each conversion is its own URL so a search for “MP3 to something” can land on a page that only does that job. The file picker on those pages expects MP3 when you are leaving this format, or produces MP3 when you are arriving. A generic dropdown still exists under Video convert and Audio convert if you would rather pick the destination after you drop the file.
You can check the same way on every pair: open the network panel, drop a MP3 file, convert it. You should see this origin. You shouldn't see a POST of the file. Google Analytics, if it's on, is page views, not your MP3 bytes. If a tool needs a server, it isn't on this site.
This site can read it. This site can write it. Engine: ffmpeg.
Convert from MP3
- MP3 to WAVUncompressed PCM. Large, simple, editable.
- MP3 to M4AAAC in an MPEG-4 audio file.
- MP3 to OGGVorbis in an Ogg container.
- MP3 to FLACLossless compressed audio.
- MP3 to OPUSOpus audio in an Ogg container. Good for speech and music at low bitrates.
- MP3 to AACRaw or ADTS AAC audio.
- MP3 to AIFFAudio IFF, common in Apple and pro-audio workflows.
- MP3 to MKAMatroska audio container (often Opus).
- MP3 to AUSun/NeXT AU audio.
- MP3 to CAFApple Core Audio Format.
- MP3 to TTATrue Audio lossless.
- MP3 to WVWavPack lossless.
Convert to MP3
- WAV to MP3Uncompressed PCM. Large, simple, editable.
- M4A to MP3AAC in an MPEG-4 audio file.
- OGG to MP3Vorbis in an Ogg container.
- FLAC to MP3Lossless compressed audio.
- OPUS to MP3Opus audio in an Ogg container. Good for speech and music at low bitrates.
- AAC to MP3Raw or ADTS AAC audio.
- AIFF to MP3Audio IFF, common in Apple and pro-audio workflows.
- MKA to MP3Matroska audio container (often Opus).
- AU to MP3Sun/NeXT AU audio.
- CAF to MP3Apple Core Audio Format.
- TTA to MP3True Audio lossless.
- WV to MP3WavPack lossless.
Related: Convert · All formats · How it works