thematic maps
in 3 steps


1. data

Import your files

2. visualizations

Explore your data through differents smart visualizations

3. export

Adjust final elements of your map and export it in svg or png format


Automatic georeferencing

Country names, ISO codes or geographical coordinates associated to your data are automatically recognized.

Custom projections

Say goodbye to Mercator and change projection at any time. ...


Four visualizations types, fully customizable


Your data belongs to you, everything stays in your web browser.

What you can create

Color gradient
Symbols and gradient
Categories of symbols
Symbols (lat/long)
Categories of surfaces

Khartis project


Khartis was born from a finding: how to make a thematic map just in few clicks, keeping requirement and scientific rigor in data processing? The team behind Khartis has refined this idea in teaching situations, research or map production and hopes that beginners will use Khartis, whether they are students, teachers, journalists or simply curious.


Initiative d'excellence (Idex) led by investissements d'avenir (PIA) enabled Sciences Po to realize in 2016 their own free online mapping tool project. The goals are multiple: transmission of know-how, knowledge (with teaching support around Khartis) and easy access with no prerequisite installation, only an Internet connection.


Khartis is not the first online mapping tool! However, it is one of the few to give to see the world from different perspectives. 3 steps accompanying map design to final visualization. Experience feedback will allow to integrate more advanced features.

Sciences Po - Atelier de cartographie

Created in 1995, the Atelier de cartographie de Sciences Po specializes in visualization of information and constantly looking for seeks innovation and diversification of media while putting into practice the fundamentals of graphic semiology. The team is made up of cartographers with complementary backgrounds and interests: Thomas Ansart, Benoît Martin, Patrice Mitrano Anouk Pettès and Antoine Rio.

The Atelier de cartographie provides education and support to research within the institution from the first year to PhD and beyond. It also provides expert missions to international organizations (UNODC), participates in editorial projects (magazines, atlases, books) or is part of museum projects (Louvre, MHI).


Yes! We launch Khartis with the world base map (with States in 2016) because the Atelier de cartographie has experience for years with global scale. Nevertheless, it allows create more regional focused maps thanks to the functions zoom and reframe before exporting the final map. We will gradually add other base maps so, please, let us know your proposal!
No, Of course Khartis is an online tool but the work remain local, on the browser. Only the data provided as examples are online.
No. Khartis was design to allow curious, not necessarily cartographer or scientist, explore a dataset to draw maps. Don't hesitate to advice us on haow improve the tool!
Khartis is young and propose, for now, 4 types of classic visualization: proportionnal symbols and colour ranges to show quantities, and variations of shapes/colours/size to distinguish categories, both on coordinates (points) or territories (areas). This combination of visualiztions offers, right now, a wide range of results. We are working on other visualizations... be carreful!
We deliberately restrained the choice to 3 methods: quantiles which take into account numbers of the dataset, whereas equal intervals or nested means are based on values of the concerned column. Of course we are thinking about two pathes for complementary functions: manual movement of limits of classes in the frequency diagram (named method of observed gaps) and also the enricment of other statistical methods (means/standard deviation or Jenks method, however it require a lot of resources), So, to be continued!
You can export your map as SVG (vector format) or as PNG (raster, with pixels beurk!). Both can be immediately opened into a browser or inserted into a report, a slideshow, a 3D printer a plane or any publication, printed or online. A raster editor such as Gimp (free) or Adobe Photoshop ($) allow to modify a PNG file. A vector editor such as Gravit (free and online) or Adobe Illustrator ($) enable to modify SVG file.

Khartis evolves

July 2016
One basemap: the world by state in 2016

October 2016
Add basemaps of France, improvment of frequency diagram, copy/past support at import

Want to contribute? Found a bug?
Khartis is an open source project.
Source code and documentation are available on GitHub.
You can also email us at carto[at]

What new feature(s) for Khartis?
Vote and suggest ideas


Sciences Po - Atelier de cartographie


Université Sorbonne Paris Cité



Project management

Sciences Po - Médialab

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