Convert ID tool

The Convert ID tool converts gene/protein entry identifiers (accession numbers) of outside databases to KEGG identifiers, which is necessary for the KEGG Mapper tools of Search and Color.

Outside DB

Search mode
Selected (enter organism code)

Enter outside identifiers:

Or upload file:


Query data format
Outside identifiers separated by whitespace characters (space, tab, newline)
Search mode
The default target database is the entire KEGG GENES database (all organisms, viruses and addendum), but the conversion is faster by selecting a target organism, such as "hsa" for Homo sapiens.

Last updated: July 1, 2021