VisColl (Collation Visualization) is a system for modeling and visualizing the physical collation of medieval manuscript codices. The core of VisColl is the data model, which defines the structure of individual manuscripts and which can be built and visualized by different tools.

The current version of the VisColl Data Model is version 2.0, which launched in Fall 2021.

The VisColl project is led by Dot Porter at the Schoenberg Institute for Manuscript Studies at the University of Pennsylvania and Alberto Campagnolo at the Université catholique de Louvain (Louvain-la-Neuve, Belgium), in collaboration with the University of Toronto Libraries and the Old Books New Science lab.

VCEditor is the software that you can use to create models and visualizations based on the VisColl Data Model 2.0. It is free and available for anyone to use.

Developed at the University of Toronto Libraries through the generosity of the Andrew W. Mellon Foundation, VisCodex is a visual collation web application based upon Viscoll’s data model. The tool can be used to produce interactive visualizations of a manuscripts’ quire structure, add leaf-level metadata, present diagrams alongside manuscript images, share visualizations with others and export diagrams as images.