I’ve been building some tools internally for myself and my team to help with our daily testing activities.
But some of these problems are very common. So I always try and search for existing solutions, so I can contribute to an existing solution instead of reinventing the wheel.
So I’d love to know what are some of the cool open-source stuff you’ve worked on or have been using pretty frequently to help with your testing ?
@jaswanth below are few:
Web Testing: Selenium, Protactor
Mobile: Appium
Performance: Jmeter, Gatling
I’ve started noodling about with a simple web app testing language, so that devs and testers can see exactly what led to a failure without having to interpret a paradigm or a bunch of Selenium calls. It works at the level of clicking things, filling fields and checking things - the concrete steps involved in using or testing a web app. As a side interest, I’ve been worrying that someone has already done this, I’m an idiot for trying, and I’m wasting my time. 
Recently I found this project which essentially did what I wanted in terms of monitoring builds but also had multiple other sources, which I thought was pretty cool.
I started building some additionally functionality that I was after to this project instead of creating my own version.
I really enjoy using open source tooling: