Beamaculator is software to calculate mainly shear force SF, bending moment BM, slope and deflection at any section of simply supported beam of given length with given loadings. Beam section can be defined like I-section, rectangular-section, circular-section, etc with corresponding and its neutral axis and moment of inertia about centroid is automatically calculated. The shear stress and bending stress at any height at specified section can also be calculated, which is important parameter. It is flash based software, and therefore no installation is required. Just copying the single file will make the software ready to use. So, It is a handy software and its .swf version runs in web browser too. This software uses Macaulay’s method to calculate the SF, BM, slope and deflection at any section of beam. The beam is assumed of homogeneous material which is isotropic and has same value of Young’s modulus both in tension and compression, and hook’s law applies.