Commit Together by Github - Now add co-authors to your commits
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.
GitHub Marketplace - Tools to build on and improve your workflow
Accessible Brand Colors - A tool to make sure your brand colors are ADA compliant.
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
Page Speaker - Modern web accessibility tools for agencies & webmasters