AlphaFold Viewer

A free, zero-install viewer for the AlphaFold Protein Structure Database. Search by protein name or UniProt accession, or pick a protein below. Structures are coloured by pLDDT confidence — the same honest confidence signal FoldLens uses. Nothing is installed; nothing about you is collected.

Predicted aligned error (PAE) shows AlphaFold's expected position error, in ångströms, between every pair of residues. Dark regions mark residue pairs whose relative position the model is confident about; bright regions mark pairs whose relative arrangement is uncertain — often between two separately-confident domains. It complements pLDDT (per-residue confidence) with pairwise, inter-domain confidence.

About this viewer

Models come straight from the AlphaFold Database (EMBL-EBI / Google DeepMind) and are rendered in your browser with Mol*, the open-source structural-biology viewer, via PDBe Mol*. Both are self-hosted here — no third-party CDN, no tracking. AlphaFold predictions are computational models, not experimental structures; the pLDDT colouring shows where the model is confident (blue) and where it is not (orange).

AlphaFold DB data is released by EMBL-EBI under CC BY 4.0. Please cite the AlphaFold papers when you use a structure — see the AlphaFold DB FAQ. This viewer is part of the free, non-profit Fold Commons project; you can cite the tool itself via the repository's CITATION.cff.