Google Charts - Interactive charts for browsers and mobile devices.
GitHub Metrics - Customize your profile with various plugins and metrics
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application
GitHub Contributions - All your GitHub contributions in one image
ChartURL - Add rich, data-driven charts to web & mobile apps, Slack bots, and emails. Send us data, and we return an image that renders perfectly on all platforms.
Contributions for GitHub - Show your GitHub contributions graph on your iOS Devices