Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.MIDI
File Type
Musical Instrument Digital Interface
Category
Audio
Best first step
Use compatible software
Quick Summary
A practical overview of the .midi file format
MIDI (Musical Instrument Digital Interface) is a technical standard that describes a communications protocol, digital interface, and electrical connectors that allow a wide variety of electronic musical instruments, computers, and other related devices to connect and communicate with one another. U…
File extension
.MIDI
File type
Musical Instrument Digital Interface
Category
Audio
Recommended action
Open with a trusted compatible app
How to open a .midi file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .midi.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .midi file?
File extension details and usage information
MIDI (Musical Instrument Digital Interface) is a technical standard that describes a communications protocol, digital interface, and electrical connectors that allow a wide variety of electronic musical instruments, computers, and other related devices to connect and communicate with one another. Unlike MP3 or WAV files, MIDI files do not contain actual recorded audio data. Instead, they contain 'event messages' that specify instructions for music, such as notation, pitch, velocity, volume, vibrato, stereo panning, and clock signals to synchronize tempo. This architecture makes MIDI files extremely small in size compared to digital audio formats because they only store instructions rather than waveforms. When a MIDI file is played, the playback device or software uses its own internal sound library, such as a synthesizer or sampler, to interpret the instructions and generate the sound. This format is indispensable for composers, music producers, and hobbyists for music composition, sequencing, and controlling hardware synthesizers. It allows for the precise editing of individual notes and performance parameters long after the initial performance was captured, providing a level of flexibility that traditional audio recording cannot match.
Software Compatibility
Programs that may open or work with .midi files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .midi files be converted?
Options for saving or exporting this file to another format
In many cases, a .midi file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .midi file.
Why can't I open a .midi file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .midi format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .midi files
To open a .midi file, use software that supports this file format.
- Windows Media Player
- VLC Media Player
- Ableton Live
- FL Studio
- MuseScore
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .midi file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.