Scholars, bring us your ancient, worn, and insightful annotations. We have the tools to help you collect and connect digital knowledge. Together we can create and curate the best that has been thought and said online.

As a community, we embrace openness. Our source code will always be libre, our standards compliant, and our knowledge free. From Cambridge, USA to Cambridge UK, from California to Vienna, we are working together to annotate everything – text, images, PDFs, maps, and videos – you find online.

If you are a developer, designer, or scholar, we need your help. If you wish to get involved, please join the conversation about software or scholarship.

Development of Annotator is made possible by the Open Knowledge Foundation,, and the Shuttleworth Foundation