# Plug-ins

The functionality of EmEditor has been expanded by incorporating user-created plug-in support. For example, you can use the Spelling plug-in to check spelling in English text, and the Decode Unicode plug-in to decode a selected text that is encoded by HTML/XML Character Reference or Universal Character Names. Plug-ins are written as Dynamic Link Library (DLL) files, and are stored in the 'plug-ins' folder, created automatically when EmEditor is installed. See the Plug-ins section for more information about creating your own plug-ins.