PDB Viewer: 3D Molecules
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Description
PDB Viewer turns your phone into a molecular microscope. Search the entire Protein Data Bank and over 200 million AlphaFold predictions, then explore any protein, virus, drug, or DNA structure in interactive 3D — free, with no account, no ads, and no sign-up.
WHERE THE MOLECULES COME FROM
RCSB Protein Data Bank — 200,000+ experimentally determined structures
AlphaFold — 200M+ AI-predicted protein models
SWISS-MODEL — template-based homology models
PubChem and ChEMBL — millions of drugs and compounds
Crystallography Open Database — small-molecule crystals
NCI/CADD resolver — type a chemical name and get a 3D model
Every source is free and needs no API key. You can also open your own .pdb and .cif files.
WAYS TO SEE IT
Five representations: wireframe, ball-and-stick, space-filling (CPK), cartoon/ribbon, and a smooth molecular surface
Color by element, chain, secondary structure, rainbow, or AlphaFold confidence (pLDDT)
Biological assemblies: rebuild an entire icosahedral virus capsid from a few deposited chains
NMR ensembles: overlay every model in the bundle to watch a protein flex
Automatic secondary-structure detection
MADE FOR TOUCH
Rotate, pinch-zoom, and pan with smooth native rendering
Tap any atom to see its element, residue, and chain
Recently viewed structures are cached, so they reopen instantly and work offline
For students, researchers, teachers, and the simply curious. PDB Viewer makes structural biology beautiful and accessible.
Structures are provided by their respective databases. PDB Viewer is independent and not affiliated with or endorsed by the RCSB PDB, EMBL-EBI, or AlphaFold.