CodeFactor.io
Codacy
CodeClimate
SonarQube
SensioLabs Insight
Source-Navigator NG
ESLint
Source Insight
Brainingcamp
mathigon
Brilliant.org
Khan Academy
Uptime - Learning
Trustudies
Brainingcamp is an all-in-one place for teaching math with digital manipulatives. We help educators make math more engaging through visual and hands-on learning. Our 17 colorful, virtual manipulatives help students visualize abstract concepts for meaningful understanding.
CodeFactor.io
BrainingcampCodacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
mathigon - The Textbook of the Future.
CodeClimate - Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.
Brilliant.org - Brilliant - Understand concepts and build your problem solving skills with thousands of free problems and examples in math, science, and engineering.
SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
Khan Academy - Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.