audio Format

MP3 File Format

MPEG-1 Audio Layer III is the most universally supported digital audio format in history. It uses lossy psychoacoustic compression to reduce file sizes tenfold.

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Technical Specifications

Extensions	.mp3
MIME Types	audio/mpeg
Category	Audio
Engine Tier	tier2-wasm
Magic Bytes / Sniffing	0x49 0x44 0x33 or 0xFF 0xFB or 0xFF 0xF3
Opens With	Every audio player, phone, car stereo, and operating system
Good For	Podcasts, music streaming, voice notes, and universal playback.
Not Recommended For	Professional studio recording where uncompressed PCM audio is required.

Convert from MP3 (6 targets)

MP3WAV(exact)MP3AAC(high)MP3M4A(high)MP3FLAC(exact)MP3OGG(high)MP3OPUS(high)

Convert to MP3 (17 sources)

WAVMP3(high)MP4MP3(high)FLACMP3(high)M4AMP3(high)AACMP3(high)OGGMP3(high)OPUSMP3(high)WEBMMP3(high)MKVMP3(high)MOVMP3(high)M4BMP3(high)AIFFMP3(high)WMAMP3(high)ALACMP3(high)AMRMP3(high)AC3MP3(high)CAFMP3(high)