Bandage is an interactive tool for visualizing de novo genome assemblies, allowing users to explore assembly graphs with connections between contigs. It enables zooming, panning, and manual node movement, and supports BLAST searches within the graphical user interface. Bandage provides insights into assembly graphs that are not possible through contig analysis alone, making it useful for identifying problematic assembly regions and resolving ambiguities. The tool is implemented in C++ with Qt, and is available on Linux, OS X, and Windows. It uses the Open Graph Drawing Framework for efficient graph layout. Bandage can handle large assemblies, though performance may be affected by the size of the graph. It is particularly useful for analyzing complex regions, such as antibiotic resistance genes and 16S rRNA sequences, where assembly may be incomplete. Bandage allows users to manually reconstruct sequences from fragmented contigs, improving the accuracy of genome assemblies. The tool is freely available and provides a comprehensive feature list and screenshots. Bandage facilitates detailed examination of assembly graphs, offering users greater insight into the structure and quality of de novo assemblies.Bandage is an interactive tool for visualizing de novo genome assemblies, allowing users to explore assembly graphs with connections between contigs. It enables zooming, panning, and manual node movement, and supports BLAST searches within the graphical user interface. Bandage provides insights into assembly graphs that are not possible through contig analysis alone, making it useful for identifying problematic assembly regions and resolving ambiguities. The tool is implemented in C++ with Qt, and is available on Linux, OS X, and Windows. It uses the Open Graph Drawing Framework for efficient graph layout. Bandage can handle large assemblies, though performance may be affected by the size of the graph. It is particularly useful for analyzing complex regions, such as antibiotic resistance genes and 16S rRNA sequences, where assembly may be incomplete. Bandage allows users to manually reconstruct sequences from fragmented contigs, improving the accuracy of genome assemblies. The tool is freely available and provides a comprehensive feature list and screenshots. Bandage facilitates detailed examination of assembly graphs, offering users greater insight into the structure and quality of de novo assemblies.