MIDI Header Inspector
Reads the Standard MIDI File header in big-endian order and reports format, declared tracks and timing division. It checks chunk sizes, variable-length event framing, running status and end-of-track boundaries before reporting.
About this midi header inspector
Read the Standard MIDI File header and report format, track count, and timing division; playback and piano-roll rendering are not included.
How this tool works
Reads the Standard MIDI File header in big-endian order and reports format, declared tracks and timing division. It checks chunk sizes, variable-length event framing, running status and end-of-track boundaries before reporting.
- Download the example file and select it in the file input.
- Click “Process locally”.
Worked example
Scenario: Example file: /examples/header.mid; Download the example file and select it in the file input. Click “Process locally”.
Sample input:
Illustrative output:
Limits and verification
Supports SMF formats 0, 1 and 2 with metrical or SMPTE division. This is a header inspector, with no piano roll, synthesizer or playback. Structural checks do not assess musical content or every manufacturer-specific event payload.
Examples demonstrate an expected workflow; they do not prove every input or every branch of an external specification. Check important results with an independent source before using them for money, security, compliance, safety, or irreversible file changes.
Browser processing boundary
Tool input is processed by code running in the browser and is not intentionally sent to a CZOA processing API. The page can still request ordinary site assets, analytics, or advertising when those services are enabled. Browser extensions and managed-device software remain outside this tool's control.
Relevant references
These references govern or help explain the format, protocol, or calculation used here. Listing a reference does not claim certification or complete implementation of every optional feature.
Content owner: CZOA Tools · Last reviewed: 2026-09-15 · Review methodology
How to use it
- Download the example file and select it in the file input.
- Click “Process locally”.
Frequently asked questions
How does MIDI Header Inspector process the signal or file?+
Reads the Standard MIDI File header in big-endian order and reports format, declared tracks and timing division. It checks chunk sizes, variable-length event framing, running status and end-of-track boundaries before reporting.
How can I reproduce the MIDI Header Inspector example?+
Example file: /examples/header.mid; Download the example file and select it in the file input. Click “Process locally”.
What limits apply to MIDI Header Inspector?+
Supports SMF formats 0, 1 and 2 with metrical or SMPTE division. This is a header inspector, with no piano roll, synthesizer or playback. Structural checks do not assess musical content or every manufacturer-specific event payload.
What should I verify in the MIDI Header Inspector output?+
The expected file or reported values are: {"format":1,"tracks":1,"ticksPerQuarterNote":256,"smpteDivision":false,"bytes":26}