When comparing Pixi.js vs NextCharts, the Slant community recommends Pixi.js for most people. In the question“What are the best JavaScript drawing libraries?” Pixi.js is ranked 12th while NextCharts is ranked 19th. The most important reason people chose Pixi.js is:
Pixi is a WebGL renderer, but can fall back to canvas if WebGL is not supported or turned off.
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Pros
Pro Supports WebGL w/ canvas fallback
Pixi is a WebGL renderer, but can fall back to canvas if WebGL is not supported or turned off.
Pro Will be familiar to ActionScript developers
Pixi.js uses a code structure that's very similar to ActionScript.
Pro Great diversity
Besides having all consecrated charts like line, area, bar, horizontal bar, pie, bubble , it can have styles for line dots (solid dot, hollow dot, star, bow, anchor) or bar types (like dome, cylinder, parallelepiped). It has support for stacked bars, negative bars, combo bar-line charts, dual axis, click events and tooltips.
Pro Free
Completely free and open-source as it uses the Apache license.
Cons
Con Not a complete solution
Pixi only provides the renderer.