
Foldseek
Search protein structures at sequence-search speed
Foldseek makes structure search as fast as sequence search by encoding backbone geometry into a structural alphabet (3Di). It can search the entire AlphaFold DB in seconds.
Example
1foldseek easy-search query.pdb targetDB result.m8 tmp
A free web server lets you search AlphaFold DB and the PDB without installing anything.
Related tools

Free
Public Databases
AlphaFold Protein Structure DB
Predicted structures for 200M+ proteins
Web appREST APIDataset

Free
Public Databases
RCSB Protein Data Bank
The global archive of 3D biomolecular structures
Web appREST APIDataset

Free for academia
Structural Biology
UCSF ChimeraX
Next-generation molecular visualization and analysis
Desktop appPython library