Enlight - Performance and Error Monitoring. We keep an eye on your applications and notify you about performance issues and errors.
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
Lambda School - A full Computer Science education - free until you get a job
SourceTree - Mac and Windows client for Mercurial and Git.
Free Code Camp - Learn to code by helping nonprofits.
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.