Upon launching Eagle, you’ll see the Control Panel. Go to File > Open > Scripts > and select eagle.scr. Add the following line to the MENU area in both the BRD and SCH sections:
'[bin/snapeda.png] SnapEDA : Run snapeda.ulp;'\
Download the SnapEDA Eagle Plugin (SnapEDA-Eagle-Plugin.zip). After unzipping, move both snapeda.ulp and json.inc into the ulp folder in the Eagle application directory.
In the bin folder, add the snapeda.png icon from Downloaded folder.
The SnapEDA plugin is now installed. When you start a new Schematic or Board, you should be able to see the SnapEDA icon in the top menu bar.
How to Install the SnapEDA Plugin for Altium
Extract the zipped folder contents to /Documents/SnapEDA
Upon launching Altium, go to DXP > Run Script
Select browse and point to the Snapeda.PrjScr script inside the /Documents/SnapEDA directory
Click SnapEDA.vbs > SnapEDAPlugin to run the installation. Follow the prompts and re-start Altium.
Run the SnapEDA plugin with the Ctrl+D shortcut, or from the File menu.