Purpose The purpose of the paper is to explore how digital libraries and online repositories enhance access to missionary archives. It investigates how the digitalization of missionary archives fosters the access, searchability, interactivity, dissemination and preservation of the historical and cultural knowledge of missionary documents and legacies. The selected topic stems from a genuine and deeply ingrained desire and interest to explore the digital archiving landscape, majorly in the context of missionary archives. Design/methodology/approach The study relied heavily on the literature review of the most current scholarly articles. Additionally, the study relied on case studies on missionary institutions and churches that rely on technology to digitize missionary archives and online repositories to make them accessible. Generally, reliance on scholarly articles relevant to the topic was an avenue for examining the existing studies and projects affiliated with digitizing and using missionary archives. Findings Missionary archives and records provide a distinct perspective regarding the realities faced by missionaries and indigenous populations. Digital libraries and online repositories are invaluable and instrumental in improving access to missionary archives. They help users overcome physical barriers while supporting the preservation of fragile materials. Additionally, the digitization efforts of various institutions foster the broader dissemination of missionary records. Digital platforms and online repositories foster collaborative research globally in remote settings. Online repositories are instrumental in enhancing access to missionary archives. They achieve this by providing centralized access points to digitalized collections of historical documents, photographs, manuscripts and artifact. Major challenges include substantial costs affiliated with digitization, environmental factors heightening degradation of the original materials and intellectual property dictations and copyright. Originality/value By using scholarly and authoritative sources of information and evidence, the study contributes to the existing literature by providing insights into the instrumentalism of digital libraries and online repositories to enhance access to missionary archives. There should be comprehensive digitization, adherence to preservation standards, commitment to stakeholder engagement and collaborative decision-making.