MIDI File — Musical Instrument Digital Interface sequence file.
Quick facts
What is .midi
A .midi file is a MIDI File — Musical Instrument Digital Interface sequence file.
In the mime-db registry it maps to audio/midi. When serving .midi over HTTP, set the Content-Type header as shown in Developer info below.
Related entities: it maps to audio/midi — and is delivered over HTTP via the Content-Type header.
How to open .midi files
Developer info
When served over HTTP, responses should set the following header:
Content-Type: audio/midi
Common software that reads/writes .midi:
Relation chain
Related extensions
Related MIME types
Common uses
How to edit .midi files
How to create .midi files
Frequently asked questions
Common options include GarageBand, FL Studio, VLC. You can also open many of these files with built-in viewers or a browser.
Create a new file in any text editor or the app that owns the format and save it with the .midi extension.
audio/midi is the media type identifier used for .midi files during network transfer (for example in the HTTP Content-Type header).
Sources & standards
Updated 2026-08-18
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