Just copy the effects you want into
- Windows:
<USER_DIR>\AppData\Roaming\REAPER\Effects\<YOUR_DIR> - Mac:
<USER_DIR>/Library/Application Support/REAPER/Effects/<YOUR_DIR> - Linux:
~/.config/REAPER/Effects/<YOUR_DIR>
Some JSFX for REAPER
Just copy the effects you want into
<USER_DIR>\AppData\Roaming\REAPER\Effects\<YOUR_DIR><USER_DIR>/Library/Application Support/REAPER/Effects/<YOUR_DIR>~/.config/REAPER/Effects/<YOUR_DIR>