There is magic in graphs. The profile of a curve reveals in a flash a whole situation — the life history of an epidemic, a panic, or an era of prosperity. The curve informs the mind, awakens the imagination, convinces.― Henry D. Hubbard
Nowadays, the amount of data grows exponentially, and the more information we see, the harder it gets to process it. That’s why we need data visualization — in charts and dashboards, preferably interactive. It helps us humans save a lot of time and effort to view, analyze, and understand data, and make the right, informed decisions based on that.
In the modern HTML5 web, one can hardly deny that JavaScript is the most versatile and simplest technology to make use of for visualizing data. So if you are a front-end web developer, you either already know what JS charts are all about, or your first task to make them will come in a (short) while.
There are numerous JavaScript charting libraries out there, each with their specific pros and cons as with any tools. To make your life easier, I decided to tell you about my favorite ones. I think the following ten are the best JS libraries for creating charts and can be really helpful in solving one or another particular data visualization task, whether it’s basic or advanced. Follow me and check them out to make sure you know the basics about them and have not missed out on some good one for your current or next big project.
Without more ado, let’s go meet the top JS libraries for data visualization!
amCharts is one of the JavaScript charting libraries that are helpful when you need a simple, and at the same time, flexible data visualization solution.
Free for any use, but all charts will include a small, branded link. To remove the link, you need to purchase a paid license (from $180), which also gives you access to priority support.
AnyChart is a robust, lightweight and feature-rich JS chart library with rendering in SVG/VML. It actually gives web developers a great opportunity to create any different charts that will help to make decisions based on what is seen.
The watermarked version is free. To get rid of the branding, as well as to use AnyChart for any commercial purpose, it’s necessary to buy a license (from $49).
Chart.js is a simple yet quite flexible JavaScript library for data viz, popular among web designers and developers. It’s a great basic solution for those who don’t need lots of chart types and customization features but want their charts to look neat, clear and informative at a glance.
A free open-source JS charts library. Released under the MIT license.
Chartist.js is an open-source, unintrusive JS library which can also be used to create nice responsive charts. Generally, Chartist is good for those who need a very simple chart — line, bar, or pie — and who do not require much in terms of data visualization. Good appearance, no need to have many great features in this case.
Open source, free for all kinds of use.
D3.js is a powerful open-source JavaScript library for data visualization. It has been forked more than 20,000 times on GitHub so far. Basically, D3 is more like a framework than a library. It may well be not that simple to work with, which can look quite critical at the beginning. But there are a lot of helpful information resources available out there. And at the end, you can get so awesome visualizations and graphics of any kind from scratch, making D3 totally worth it.
D3 is an open source JavaScript library for charts, which is free for all kinds of use.
FusionCharts is another good interactive charting library with hundreds of charts ready for use out of the box. The charts accept both JSON and XML data formats and are rendered via HTML5/SVG or VML.
Free for non-commercial, paid for commercial use (from $497).
Google Charts is an excellent choice for projects that do not require complicated customization and prefer simplicity and stability.
The license is free, but the library is not open source. It does not allow you to host Google’s JS files on your server, so it may not suit you if you have some sensitive data.
Highcharts is one of the most comprehensive and popular JavaScript charting libraries based on HTML5, rendering in SVG/VML. It is lightweight, supports a wide range of diverse chart types, and ensures high performance.
Free for use by nonprofits. Paid for commercial use (from $50).
Plotly.js is a high-level JavaScript library, free and open-source. It is built on D3.js and WebGL, so can be used to create many different chart types including 3D charts to statistical graphs.
Open-source, free library.
ZingChart is a helpful tool for making interactive and responsive charts. This library is fast and flexible, and allows managing big data and generating charts with large amounts of data with ease.
The branded license provides full access to the ZingChart library for free. Commercial usage requires a paid license (from $199).
I have listed the best JavaScript charting libraries out there, at least those I consider the top ones. It would be hard to compare all of them comprehensively. Each one of them has its own pros and cons depending on who is going to use it and for exactly what purpose.
Of course, there are some features that make one library faster, more beautiful or flexible than the other. But in the end, no matter what libraries this list contains, the overall winner is always the one that meets your specific requirements. For different people and companies, the choice of the best JS chart library can also be different.
My advice is — check out these top libraries as whenever you need JS charts and for whatever project, chances are extremely high that you will find one or several of them to be the best fit. For a longer list, look at a comparison on Wikipedia.
If you need to visualize data in interactive maps, focusing on geographic trends, relationships, connections, flows, and so on — you are welcome to read my earlier article about the best JavaScript libraries for creating map charts.
Have a great day and wonderful data visualizations using JavaScript!
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