FragPipe is a Java Graphical User Interface (GUI) for a suite of computational tools enabling comprehensive analysis of mass spectrometry-based proteomics data. It is powered by MSFragger - an ultrafast proteomic search engine suitable for both conventional and "open" (wide precursor mass tolerance) peptide identification. FragPipe includes the Philosopher toolkit for downstream post-processing of MSFragger search results (PeptideProphet, iProphet, ProteinProphet), FDR filtering, label-based quantification, and multi-experiment summary report generation. Crystal-C and PTM-Shepherd are included to aid interpretation of open search results. Also included in FragPipe binary are TMT-Integrator for TMT/iTRAQ isobaric labeling-based quantification, IonQuant for label-free quantification with match-between-run (MBR) functionality, spectral library building with EasyPQP, and MSFragger-DIA and DIA-Umpire SE modules for direct analysis of data independent acquisition (DIA) data.