Some archives and special collections have digitized documents in their collections making them accessible to researchers around the world. Below are a few open digital archives with collections focused on decolonization.
A selection of documents, facsimiles, and transcriptions of materials covering history in Europe. Arranged by nation and then organized by period of time (where possible). Includes resources from Germany, the United Kingdom, and Russia during the World War II period.
From the European University Institute this site serves as an aggregator to other primary sources. For colonization sources go to Browse digital repositories > Subject > Colonial.
Digitized texts, images, videos, recordings and museum objects about migration to and from Europe. Materials from European cultural and scientific institutions. Conduct a search for colonial to locate materials from the colonial offices of different European countries.
A UNESCO project, this database contains multi-lingual primary source materials from countries and cultures around the world. Coverage: 8000 BCE to present.
The Internet African History Sourcebook brings together primary sources focused on the history of the African continent. The European Imperialism section provides resources on the different colonial powers in Africa, as well as analyses and criticism of imperialism, missionary activities, etc.