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Old 05-28-2017, 04:18 PM   #2
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Join Date: May 2015
Location: Québec, Canada
Posts: 2,312

JS for REAPER effects stands for "Jesusonic" (, not JavaScript. Any text editor can do the job, but note that REAPER has its own IDE built-in with special features for JSFX programming.

The "jsfx-inc" file extension is meant for included file (the "inc" in jsfx-inc): they are hidden from REAPER's FX browser. Use no extension at all for your FX instead or the ".jsfx" extension (any file extensions except the few that are hidden works). As stated in the documentation (
Note that files that are designed for import only (such as function libraries) should ideally be named xyz.jsfx-inc, as these will be ignored in the user FX list in REAPER.
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