Opendefinition.org
The Open Definition - Open Definition - Defining Open in Open Data, Open Content and Open Knowledge
Defines clear principles for open data and content, helping users understand and apply openness standards in various languages.
Understand openness standards for data and content
The Open Definition website explains what it means for data and content to be considered 'open.' Here, you can read simple, clear principles that help you understand the standards and requirements for openness, whether you’re working with data, documents, or digital content.
The site is a useful resource if you want to learn about open licenses, how to make your content open, or which licenses conform to these principles. It’s available in many languages, making it accessible to a global audience.
Whether you’re a creator, researcher, policymaker, or just curious about open knowledge, you’ll find practical information, official definitions, and helpful links to related resources and licensing guides.
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