Look up plug-in, plug in, or plugin in Wiktionary, the free dictionary.

Plug-in, plug in or plugin may refer to:

• Plug-in (computing) is a software component that adds a specific feature to an existing computer program.
  • Audio plug-in, adds audio signal processing features
  • Photoshop plugin, a piece of software that enhances the functionality of Adobe Photoshop
• Plug-in electric vehicle, type of electric vehicle
  • Plug-in hybrid, a type of plug-in electric vehicle
• Glade PlugIns, fragrance distribution product
• Plug Ins, chain of electronics stores owned by Al-Futtaim Group

• Vladimir Plugin (1937–2003), Russian historian and art historian

• AC power plugs and sockets, two- or three-pronged wall electrical outlets
• Add-on (disambiguation)
• Browser extension, which modifies the interface and/or behaviour of web browsers
• Change of variables, a mathematical procedure wherein substitutions are made in a formula
• Plug and play, a common standard for hardware equipment installation

This disambiguation page lists articles associated with the title Plug-in.
If an internal link led you here, you may wish to change the link to point directly to the intended article.