MetaPath is a tool for the analysis of metabolic pathways and associated visualization of experimental data. Built on the MetaCyc database, it provides an interactive map in which multiple pathways can be simultaneously visualized. Multiple annotations from the MetaCyc database are available, including synonyms, associated reactions and pathways, and database unification links. Metabolomics change data can be imported via simple CSV formats for visualization on targeted pathways. Pathways can be mined and removed algorithmically to identify key regulated pathways within a given dataset, providing a simper route to metabolic functions.