fxSolver is described as «Online math solver, equation library, graphing calculator and science/engineering problem helper» and is a popular Calculator in the education & reference category. There are more than 100 alternatives to fxSolver, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Android. The best alternative is SpeedCrunch, which is both free and Open Source. Other great sites and apps similar to fxSolver are Microsoft Office Excel, Wolfram Alpha, Qalculate! and GNU Octave.fxSolver alternatives are mainly Calculators but may also be Spreadsheet Apps or Programming Languages. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of fxSolver.