MID to MIDI File Inspector
Inspect what is inside a .mid file, then re-export the parsed sequence with the full .midi extension — locally in your browser.
- Local processing
- Track & note counts
- .midi export
Click a note to hear it
MIDI file inspector
Parse and normalize locally
Drop a MID or MIDI file here, or browse
MID / MIDI · maximum 10 MB
How it works
Choose a MID file
Open a .mid or .midi file up to 10 MB. The file stays in the browser and is parsed locally.
Read the file summary
Check the number of tracks and notes, total duration, first tempo event, and detected General MIDI instruments.
Save as MIDI
Re-serialize the parsed sequence and download a normalized copy using the .midi extension.
Formats & limits
- Input formats
- MID
- Output
- MIDI
- File limits
- 50 MB · 10 min
- Price
- Free · no sign-up
What the inspector tells you
- .mid and .midi are extensions for the same Standard MIDI File format; renaming alone does not validate a damaged file.
- Track count includes empty or metadata-only tracks, while the note count sums playable note events.
- The displayed tempo is the first tempo event; a file may contain later tempo changes.
- Instrument names come from General MIDI program numbers and may differ from custom sounds in the original project.
Frequently asked questions
Are MID and MIDI different formats?
No. .mid and .midi normally contain the same Standard MIDI File data; the difference is the filename extension.
Does this tool upload my MIDI?
No. Parsing and re-export happen locally in the browser.
Does re-exporting change the music?
The parsed notes, timing, tracks, and supported events are serialized again. App-specific data that is not part of the parsed MIDI model may not be retained.
Can it repair a corrupt MIDI file?
It can normalize files that parse successfully, but it cannot recover a file whose MIDI structure is unreadable.
More converters
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Video to MIDI
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Toolkit
- MIDI Converter
- Text to MIDI
- MID to MIDI
- MusicXML to MIDI