Top 10 Global Public Libraries by Percentage of Digitized Rare Collections

As of 2026, the National Library of the Netherlands (Koninklijke Bibliotheek) leads the global rankings with an extraordinary 94% digitization rate for its rare book collections, effectively achieving near-total digital coverage. In comparison, the global average for top-tier national libraries hovers around 60%. This substantial gap is the culmination of the two-decade-long national 'Metamorfoze' preservation program. As libraries worldwide face the dual challenge of processing massive datasets while preserving fragile originals, the Dutch model stands out by integrating AI-driven OCR and multispectral imaging. This approach has not only preserved the physical artifacts but has rendered centuries-old manuscripts fully searchable, marking a paradigm shift in how we access and interact with the world's collective intellectual heritage.