HUPO Proteomics Standards InitiativeHUPO Proteomics Standards Initiative

PEFF Online Validator

PEFF (PSI Extended Fasta Format) is a proposed unified format for protein and nucleotide sequence databases to be used by sequence search engines and other associated tools.

Upload a file below to test to see if an example file is a valid PEFF file:





The Proteomics Standards Initiative (PSI) is a part of the Human Proteome Organisation (HUPO)