HistoAtlas is described as 'Comprehensive resource mapping the morphological landscape of cancer across 21 TCGA cancer types. By extracting quantitative histological features from over 6,000 diagnostic whole-slide images, HistoAtlas reveals how tissue architecture relates to patient' and is an website. There are five alternatives to HistoAtlas, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Self-Hosted apps. The best HistoAtlas alternative is VectorBee, which is free. Other great sites and apps similar to HistoAtlas are Genophore, SnapGene Viewer, Serial Cloner and CLC Genomics Workbench.