Online Tools

Online Tools

A collection of online tools


Play with Docker

Play with Docker Play with Docker (PWD) is a project hacked by Marcos Liljedhal and Jonathan Leibiusky and sponsored by Docker Inc.

PWD is a Docker playground which allows users to run Docker commands in a matter of seconds. It gives the experience of having a free Alpine Linux Virtual Machine in browser, where you can build and run Docker containers and even create clusters in Docker Swarm Mode. Under the hood Docker-in-Docker (DinD) is used to give the effect of multiple VMs/PCs. In addition to the playground, PWD also includes a training site composed of a large set of Docker labs and quizzes from beginner to advanced level available at

Regular expression testers

regex101: build, test, and debug regex

RegExr: Learn, Build, & Test RegEx

Regex Tester - Javascript, PCRE, PHP

Continuous Integration