KEGG pathway map viewer (or Pathway viewer) released in July 2020 [reference] is not simply a viewer, but it contains features of client side operations. All types of KEGG pathway map coloring are now performed on the client side, including the generation of organism-specific pathways except for global maps that are still processed on the server-side, marking of search results and coloring of map objects based on users' data. The viewer can be launched with a simple weblinks form. See more details of map coloring methods in the following documents.

• Map coloring GUI
• Map coloring URL

Brite hierarchy viewer (or Brite viewer) released in January 2021 [reference] is a web application similar to Pathway viewer, performing Brite mapping on the client side, including taxonomy mapping. The viewer can be launched with a simple weblinks form.

KEGG Genome browser released in January 2022 [reference] is another web application, which integrates server side features of synteny analysis for finding conserved gene orders in multiple genomes. The browser can be launched with a simple weblinks form. The browser is available for the genomes with the NCBI assembly level of "Complete genome" or "Chromosome" as shown in the following brite file.

• KEGG organisms in taxonomic ranks