Gone - An ephemeral to-do list
Chart.js - Easy, object oriented client side graphs for designers and developers.
Streaks - The to-do list that helps you form good habits.
D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Google Charts - Interactive charts for browsers and mobile devices.