OKRStudio - Connect Trello cards to OKRs. Manage OKRs inside of Trello
Chart.js - Easy, object oriented client side graphs for designers and developers.
OKRs.app - Reach your personal goals with OKRs
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.
Quantive - The best platform for turning strategy into results.
Google Charts - Interactive charts for browsers and mobile devices.