Open Data is based on the idea that public information should be freely available for use and re-use.
Open Data portals are web-based interfaces designed to make it easier to find re-usable information.
The EU's Open Data Portal is the single point of access to data from the institutions and other bodies of the European Union. These data may be used and re-used freely for commercial or non-commercial purposes.
The European Data Portal provides a single point of access in the 24 EU official languages for data published by public administrations at all levels of government in Europe.