Description: Debuggex is a free online visual regex tester. It allows you to visually construct regex patterns and test them against input strings to see if there is a match.
Type: software
Pricing: Free
Description: Desmos is an online graphing calculator that allows users to plot mathematical functions, equations, inequalities, parametric equations, polar equations, scatter plots, and regression lines. It has an intuitive, easy-to-use interface and supports mathematical expressions formatted in standard and LaTeX notation.
Type: software