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Re:Vega: A Visualization Grammar by colordrops on Sunday September 06, 2015 @03:43AM (#10177038)
What are the best for D3-based visualization/charting libraries when it comes to being high customizable, styleable, and performant? There are dozens of them, but with some research the most interesting ones seem to be:

* Vega - Talked about in this thread

* nvd3 - Meant to work in similar style as D3, supports extension. Seems popular

* Epoch - Real-time charts are purpose-built to be performant and low-overhead. Limited number of visualization types

* D4 - Extends D3 instead of wrapping it. Separation of data from view

* C3js - Easier API. extendable.

* rickshaw - Mainly for time series data. Supports extensions. Works in similar style as D3.

Re:Vega: A Visualization Grammar by TheWiseOne on Sunday September 06, 2015 @04:57AM (#10177147)
I've found Plottable (https://github.com/palantir/plottable) to be pretty good.
Re:Vega: A Visualization Grammar by heliodor on Sunday September 06, 2015 @10:17AM (#10177698)
Good list. Dimple and DC should also be mentioned at the top of the list. And to provide a more extensive list people can evaluate: XCharts, D3xter, Metrics Graphics, TauCharts, N3, and Dangle.