Convert MIDI to AIFF — Free Online Converter

MIDI (.midi) files serve as the digital equivalent of sheet music for computers — encoding every musical decision (pitch, rhythm, dynamics, instrumentation) as discrete events that any compatible synthesizer can interpret. The .midi extension is the full spelling of the Standard MIDI File format, prevalent on Linux-based music workstations and in academic music computing environments where file extensions are not abbreviated by convention.

AIFF (Audio Interchange File Format) was developed by Apple in 1988 based on Electronic Arts' IFF specification. It stores uncompressed PCM audio in big-endian byte order, making it the native professional audio format on macOS. Converting MIDI to AIFF renders the symbolic score into an uncompressed audio master — the starting point for any professional audio production workflow on Apple hardware.

Academic music departments and research institutions frequently work with .midi files for computational musicology, algorithmic composition, and music information retrieval research. When these compositions need to be presented, performed, or archived as audio, AIFF provides the uncompressed standard expected by institutional audio archives and Apple-based recording studios.

Film composers who sketch ideas as MIDI before orchestral recording sessions need high-fidelity audio previews for directors and producers. AIFF provides the uncompressed quality that professional review workflows demand, and integrates directly with Logic Pro, Pro Tools on macOS, and Apple's broader professional audio ecosystem.