SMOL Graphs DB
Spectra and matrices of small simple graphs.
Query the DB
Look up a graph by its graph6 encoding
Compare multiple graphs side by side (2-10 graph6 strings, separated by whitespace)
Search by basic properties. For advanced queries, see API docs.
Browse examples
Graphs with identical adjacency spectra but different structure
Graphs with identical Kirchhoff spectra but different structure
Graphs with identical signless Laplacian spectra but different structure
Graphs with identical normalized Laplacian spectra but different structure
Graphs with identical non-backtracking spectra but different structure
Graphs with identical non-backtracking Laplacian spectra but different structure
Graphs with identical distance matrix spectra but different structure