FOSS tool for editing graph data

Is there any FOSS tool available for node/edge editing? I stumbled over neo4j commander which seems to be a nice tool for the purpose but it still isn't FOSS albeit very nicely priced. I'm running a community version of neo4j as a container and would like to find a browser based tool. Neo4j Bloom also seems to fit the bill but it's desktop based so that rules it out.

Many thanks in advance.