GitHub for Atom - Git and GitHub integration right inside Atom
tota11y - An accessibility visualization toolkit from Khan Academy
KanbanFlow - KanbanFlow is a Lean project management tool allowing real-time collaboration between team members. Supports the Pomodoro technique for time tracking.
Nibbler - Free tool for testing how good your website is, and what you can do to improve it. Check accessibility, SEO, social media, compliance and more.
Hygger - Hygger - is an Agile project management tool with built-in prioritization.
Page Speaker - Modern web accessibility tools for agencies & webmasters