Field notes, not theory
MIDI guides for real files
These guides start with a file that needs work: a messy export, a wrong key, a timing problem, or a MIDI that has to become audio, data, video, or cover art. Each one links to the browser tool that does the job.
Start with the file you actually have. These guides cover the decisions that are easy to get wrong: choosing a base file for a merge, reading a key estimate, cleaning a generated export, or turning notes into a video.
Every article is written around a browser workflow and links to the matching tool. No account is required for the local tools, and the guides do not pretend that a lightweight editor can replace a full DAW.
5 guides
Editing
How to edit MIDI without a DAW
Learn how to edit MIDI without a DAW: open a file, fix notes, timing, tempo, and velocity in a browser, then export a standard .mid your DAW can import.
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How to fix MIDI timing
Learn how to fix MIDI timing without flattening the groove: diagnose the cause, choose the right grid, use quantize, and add controlled human variation.
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How to find the key of a MIDI file
Learn how to find the key of a MIDI file from its notes, read confidence and relative keys, and decide when to transpose the file for a singer or DAW.
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How to merge MIDI files
Learn how to merge MIDI files without losing tracks, tempo, controllers, or channels. Choose a base file, inspect the result, and export a clean Type 1 MIDI.
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Common MIDI file errors
Learn the MIDI file errors that break DAW imports, from invalid channels to missing End of Track events, and how to inspect and fix a .mid file before sharing.
Read the guide →2 guides
Conversion
MIDI vs MP3
MIDI vs MP3 explained: one stores note instructions and the other stores recorded sound. Learn what changes when you convert, edit, or export either format.
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How to convert audio to MIDI
Learn how to convert audio to MIDI, which recordings produce useful drafts, and how to clean monophonic notes before exporting a .mid file for your DAW.
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Media
How to make a MIDI video
Learn how to make a MIDI video for Shorts, Reels, TikTok, or YouTube: choose a frame, style the piano roll, record locally, and add production audio afterward.
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How to make cover art from MIDI
Learn how to make cover art from MIDI using the actual note pattern, title, key, tempo, and bars. Customize a background and export a square PNG locally.
Read the guide →1 guide
AI cleanup
Prefer to start with the file?
Open a MIDI tool and skip the reading
The tool pages contain the same practical notes, a working editor, and a clear boundary around what each operation changes.