About
WillItPlug answers one question for travellers: will my plugs fit where I'm going? Pick where you live and where you're headed, and it shows your plugs next to the outlets there, whether you need an adapter, and whether the voltage or frequency differs enough to matter.
It covers 242 countries and territories, in 8 languages. It is free, has no accounts, and the same answers are open to apps and AI assistants through aJSON API and MCP server.
Who runs it
WillItPlug is built and run by Richard Borcsik in Hungary. It is an independent project, not part of an adapter maker or a retailer.
Where the data comes from
The plug types, voltage and frequency of each country are checked against these references. The API lists which ones each country was checked against, and when.
- IEC World Plugs (retired by the IEC; archived copy)
- Wikipedia, Mains electricity by country
- WorldStandards, Plug, socket & voltage by country
The data is conservative on purpose. If a plug only sometimes fits an outlet, or fits but loses its earth connection, WillItPlug says it doesn't fit.
How it pays for itself
Some shop links are affiliate links: if you buy through them, WillItPlug may earn a small commission at no extra cost to you. It doesn't change the verdict for a trip or what is recommended.
Contact
Email willitplug-support@richardb.me, or seesupport for what to include when you report wrong data. WillItPlug is travel information, not electrical advice.