D3.js vs Epoch by Fastly: What are the differences?
D3.js: A JavaScript visualization library for HTML and SVG. JavaScript library for manipulating documents based on data. Emphasises on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework; Epoch by Fastly: A general purpose real-time charting library for building beautiful, smooth, and high performance visualizations. Epoch is a general purpose charting library for application developers and visualization designers. It focuses on two different aspects of visualization programming: basic charts for creating historical reports, and real-time charts for displaying frequently updating timeseries data.
D3.js and Epoch by Fastly can be primarily classified as "Charting Libraries" tools.
D3.js and Epoch by Fastly are both open source tools. D3.js with 85.8K GitHub stars and 21K forks on GitHub appears to be more popular than Epoch by Fastly with 4.99K GitHub stars and 292 GitHub forks.