When comparing Google Charts API vs Pixi.js, the Slant community recommends Pixi.js for most people. In the question“What are the best JavaScript libraries for creating visualisations of data as charts/graphs?” Pixi.js is ranked 14th while Google Charts API 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 FREE!
Pro Easy to use
Google Charts has a large selection of chart types to get started with and have up in running in very little time. It uses sensible defaults, but has flexible options to allow for customization when needed. Better than most other free to use Chart APIs and has great documentation provided by Google.
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.
Cons
Con Proprietary
Con Cannot self-host
Google does not allow you to save or host the code yourself.
Con Not a complete solution
Pixi only provides the renderer.