SysEx Hex Parser & FM Sandbox
An interactive diagnostic tool to inspect standard MIDI System Exclusive (.syx) files.
Drag in your hardware dumps to analyze manufacturer codes, debug checksums, parse patch tables, and audition sounds using a browser-synthesized FM emulator.
1. Load SysEx File
Drag & drop a .syx file here, or browse
No file on hand? Load a demo:
2. Diagnostic Report
Hover over bytes to decode standard MIDI sub-structures. Color key: Header/EOX Mfg ID Format Data Patch Names
Extracted patch list. Click AUDITION to load a patch into the FM synthesizer sandbox, then play keys below.
Active Engine Preset