Online tool to convert gexf files to vosviewer json format, and back

Not sure about how to get a gexf file from Gephi? Visit this detailed tutorial on how to go from Gephi to a web visualization with VOSviewer.

What about the limit to 500 nodes?

While Gephi is made for small and very large networks, VOSviewer is made for networks up to about 500 nodes. 300 nodes is even preferable. Above this size, the visualization becomes harder to read and the operations become very slow.

What if your network is bigger than 500 nodes? Nocodefunctions helps you: in the gexf file, it will select the 500 nodes in the edges that have the larger weight. The other nodes will be filtered out. This should produce a smaller network which still gives a helpful view of the original, complete network.

Optional: add legends to the elements of your network.

item
What do the "items" (or nodes, or agents...) in your network represent? Give it a short name

link (edge)
What do the "links" (or edges, or bonds...) in your network represent? Choose a short name

strength ('weight') of the link
What do the "link strength" (or weight) in your network represent? Choose a short description.

Gephi - a generalist free software for network visualization

Gephi is a free desktop software to create, visualize and explore small and large networks. The user can import, layout, filter, colorize, resize, and compute key metrics on the network.

This makes it an effective tool for the visual exploration of network data and for the visual communication of such data.

Useful links: Tutorials for Gephi and the very active Facebook group of Gephi users.

VOSviewer - from scientometrics to generalist app to visualize semantic networks

VOSviewer is a free desktop software to create and visualize networks, with advanced capabilities in the domain of scientometrics (which, briefly said, consists in the measurement and assessment of the scientific activity).

In Summer 2021, the developers of VOSviewer have launched an online version, which makes it very practical to share the visualizations created on it.

Useful links: Getting started with VOSviewer which offers a collection of resources.

Creating a bridge between Gephi and VOSviewer

Network data can be formatted according to different conventions: GraphML, DL, or Pajek Net are among the most common ones. This table of network file formats makes a useful (if incomplete) recap:

What makes things impractical is that not all network viz software accept all formats. In particular:

Gephi can import and export gexf files, but it does not recognize VOSviewer json network files
VOSviewer can import and export VOSviewer json files, but it does not recognize gexf files

The converter between gexf and VOSviewer json files offered on this page is a bridge which I hope will be found useful by the users of both software.

Convert files between Gephi and VOSviewer

Gephi - a generalist free software for network visualization

VOSviewer - from scientometrics to generalist app to visualize semantic networks

Creating a bridge between Gephi and VOSviewer