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: Ktechlab is an open source integrated development environment for electronic and PLC circuits. It allows schematic capture, circuit simulation, and microcontroller programming aimed at students, educators, and hobbyists.
Type: software
Pricing: Open Source