Free data visualization tools on the web
Many data visualization tools can be found on the web. Some will cost you a pretty penny but many are free. One free data visualization tool is the open-source javascript library
Leaflet
. Full of mobile friendly interactive maps, Leaflet describes itself as “designed with simplicity, performance and usability in mind.” The web site is complete with tutorials, links to plugins to expand its basic abilities, and download page for various versions.
Leaflet map
Google Developers Charts
offers a variety of charts in a gallery and has a quick start guide. With 28 types of charts, maps, word trees and timelines, users can find the best way to display their information using this totally free data visualization tool.
Word tree example from Google Charts
Another free, open source data visualization javascript library for interactive map-making is
Polymaps
. This site offers data visualization techniques including spherical Mercator tile format, multi-zoom datasets over maps and tiled vector data which makes it possible to use on country, state, city, or neighborhood levels.
Polymap of pavement quality in San Francisco
Small and specifically designed for vector graphics,
Raphaël
is a javascript library designed to make cross-browser compatibility easy. The site provides animation demos and free icons but is more hands-on that other tools.
Other free data visualization tools and techniques available on the web can be found in
The 37 best tools for Data Visualization
.
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