Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

Usetrace - Web app testing system that doesn’t require coding or constant updating

TaskPaper - Plain text to-do lists for Mac

Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.

Magnetic - Magnetic is an all-in-one agency management software built for productivity.

CrossBrowserTesting - Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.