Thursday, March 15, 2012

Tip: How To Make Free Maps For Your Blog or Website

How do you make a world map (or regional / country maps) with data that you can use on your blog or website? Google Maps is obviously one tool that can be used, but I do not like the interface and the colours. The customization of features is also somewhat limited. This tip shows you some good tools (online and offline) that you can use to generate and customize such maps.

1) Gunn Interactive
This is a very good tool to depict your data on a world map. You can load your own data by pasting it into the site (e.g. by copying from an Excel file or similar formats). You can then edit data (you have to double-check the country name as it may not match the exact country name listed in the site).

This tool is quite easily customized – you can set the appearance, change the colours corresponding to data values, whether to display the key / legend, whether to show country labels and finally whether to save as JPG or PNG. One downside, though, is that you cannot save the data loaded for the next use.

It is free and easy to use, and shared under the Creative Commons - you are free to share and generate derivative works, with attribution by providing a link to the site. See the examples produced by this tool - the Christian map, Muslim map and Freedom map.


Africa map, random countries
This is another site with a number of editable maps – including a world map and regional maps. You can choose to highlight different countries with different colours, whether to show the coast lines, borders or country names, among other things. [The tool seems to be able to take in and depict data by each country, but this feature does not seem to work.] Similar to the previous tool, you can save the map as a PNG file, but you cannot save the settings for future use.

This site also has a number of blank maps for download - including world maps, regional maps as well as country maps. These maps are free, but the site does not specify any specific sharing arrangements. 


StatPlanet is a free software for creating interactive maps (and graphs) that are customizable. You need to download and install it, and load your data in the form of Excel files. It takes a bit of time to get used to initially, so it is less straightforward than the first two tools. It is more powerful though, and it is relatively easy to use once you are used to it. See an example (also in the graphic here) produced by this tool - the Crime Statistics(homicide rates) map.



This site provides a series of editable vector maps in the form of powerpoint templates. There are world maps, regional maps as well as country maps (see for example the US map on the right). These are all free for use, but be sure to check the website and templates for detailed terms. One thing to note is that some of the maps may have missing information (e.g. country borders, etc), but on the whole it is a good tool to use if you do not need 100% accuracy.



5) Other vector maps
Wikipedia World Map
Here are some other resources where you can get free vector maps (basically they are just graphics), but do note the terms and conditions of use.

Credit: U.S. Geological Survey
This form-based simple map generator (called Map-It) is a slightly different tool from the ones above. It takes longitude / latitude pairs as input and plots them on a map along with land/sea and political boundaries. You can set the map bounds about 10% larger than the bounds of the entered data points. 

The good thing about this tool is that you can generate a map of any region in the world, as long as you have the longitude and latitude (which you can get from places such as here). 

The downside of this tool is that you need to figure out all the longitude and latitude yourself (though they provide you the numbers if you need to plot the whole world). Another downside is that the colours are fixed, and you cannot change them. The tool is free to use, but do check out their terms of use (e.g. you have to credit USGS).

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