GeneSetCart is a free Chrome extension designed for researchers and bioinformaticians to manage and analyze gene sets from various sources. It seamlessly integrates gene sets from Rummagene and RummaGEO, allowing users to enrich their datasets with gene-gene co-expression or protein-protein interactions. This interactive web-based application supports single or multiple gene set uploads, enabling users to perform set operations such as union, consensus, and intersection.

The tool also offers robust visualization options, including Venn diagrams, heatmaps, UMAP, SuperVenn diagrams, and UpSet plots, which help to illustrate the similarities and overlaps between gene sets. Additionally, GeneSetCart facilitates functional enrichment analysis through links to external tools like Enrichr and KEA3, and it allows users to save their gene sets for future analysis or sharing, making it an invaluable resource for hypothesis generation and knowledge integration.