Metabase - Metabase is the easy, open source way for everyone in your company to ask questions and learn from...
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.
Holistics.io - Holistics is a powerful BI platform that empowers analysts with SQL to build a data warehouse and automated reporting routines that deliver data to everyone. Get your first report within 10 minutes! Sign-up for a free trial!
Chart.js - Easy, object oriented client side graphs for designers and developers.
Tableau - Tableau can help anyone see and understand their data. Connect to almost any database, drag and drop to create visualizations, and share with a click.
Google Charts - Interactive charts for browsers and mobile devices.