Google Chart API

The Google Chart API is an interactive Web service (now deprecated) that creates graphical charts from user-supplied data. Google servers create a PNG image of a chart from data and formatting parameters specified by a user's HTTP request. The service supports a wide variety of chart information and formatting. Users may conveniently embed these charts in a Web page by using a simple image tag.

Google Chart API
Original author(s)Google
Initial release2007
Stable release
February 2010
Available inHTTP requests
Websitedevelopers.google.com/chart/image/

Originally the API was Google's internal tool to support rapid embedding of charts within Google's own applications (like Google Finance for example). Google figured it would be a useful tool to open up to web developers. It officially launched on December 6, 2007.

Currently, line, bar, pie, and radar charts, as well as Venn diagrams, scatter plots, sparklines, maps, google-o-meters, and QR codes are supported.

Google deprecated the API in 2012[1][2] with guaranteed availability until April 2015. On March 18, 2019 Google turned off the API.[3] API compatible alternatives were created like Image-Charts.com. Google recommends the successor service Google Charts.[4]

Example

The following URL creates the pie chart below:
http://chart.apis.google.com/chart?
chs=200x200
&chdlp=b
&chtt=Uberman
&chdl=Asleep|Aw
&chd=t:11,11,11,11,11,11,11,11,11,11,11,11
&cht=p
&chco=586F8E,red,586F8E,7D858F,586F8E,7D858F,586F8E,7D858F,586F8E,7D858F,586F8E,7D858F

External Libraries

Instead of creating the URL request manually, there are many open source libraries available for most programming languages.

PlatformNameWebsite
JavaGoogle Chart API wrapper[5]https://code.google.com/p/googlechartwrapper/
Javacharts4j[6]https://code.google.com/p/charts4j/
C#/.NETngcharthttps://code.google.com/p/ngchart/
Rubygcharthttps://web.archive.org/web/20100618222849/http://rubyforge.org/projects/gchart/
Pythongoogle-chartwrapperhttps://code.google.com/p/google-chartwrapper/
PHPgchartphphttps://github.com/pacbard/gChartPhp

See also

References
  1. Google Developers Blog
  2. "Google Charts: Terms of Service: Deprecation Policy".
  3. Image Charts documentation, retrieved 29 May 2019
  4. "Google Charts: Interactive charts for browsers and mobile devices".
  5. Google Chart API wrapper
  6. charts4j
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