MolStar is a modern web-based open-source toolkit for visualisation and analysis of large-scale molecular data.


The MolStar widget stands as a pinnacle in molecular visualization, offering unparalleled performance in graphics and data handling. With its cutting-edge capabilities, users can seamlessly visualize hundreds of superimposed protein structures, playback molecular dynamics trajectories, and render cell-level models with atomic precision, accommodating tens of millions of atoms effortlessly. Moreover, MolStar's remarkable capacity extends to displaying massive models obtained from techniques like I/HM, exemplified by its ability to represent intricate structures such as the Nuclear Pore Complex with clarity and precision. This widget revolutionizes the exploration of molecular landscapes, empowering researchers with a powerful tool to unravel the complexities of biological systems and drive forward discoveries in structural biology and beyond.

Use Cases

  • Display the structure of protein/antibody.


The MolStar requires PDB ID to get started. Click the Edit button to select the PDB column

  • PDB Column: Select the column of PDB.


The MolStar interface showcases protein sequences, protein structures, and configurable settings to adjust the structure's presentation. For further insights into the viewer's capabilities, visit


When using MolStar, please cite:

David Sehnal, Sebastian Bittrich, Mandar Deshpande, Radka Svobodová, Karel Berka, Václav Bazgier, Sameer Velankar, Stephen K Burley, Jaroslav Koča, Alexander S Rose: Mol* Viewer: modern web app for 3D visualization and analysis of large biomolecular structures, Nucleic Acids Research, 2021; 10.1093/nar/gkab31.

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