Introduction

This document is a manual for the Fermi surface drawing program “FermiSurfer”. FermiSurfer has been developed since 2012 by Mitsuaki Kawamura (ISSP, The University of Tokyo); it is opened on web at November, 2014. It draws Fermi surfaces, and plot \(k\)-depend matrix elements such as the superconducting gap and orbital character with colors.