networkx supports a graph serialization format it calls node-link data that can be read/written to JSON. See
While this format doesn't appear to be a standard, it is simple and interoperable due to its JSON compatibility. It supports node & edge attributes.
networkx supports a graph serialization format it calls node-link data that can be read/written to JSON. See
networkx.readwrite.json_graph.node_link_datanetworkx.readwrite.json_graph.node_link_graphWhile this format doesn't appear to be a standard, it is simple and interoperable due to its JSON compatibility. It supports node & edge attributes.