3D Molecular Structure Generator
Generate a 3D conformer from a SMILES or any supported format, rotate it interactively in your browser and download the result as an SDF file.
Drag to rotate · scroll to zoom
How the 3D structure is generated
OpenBabel first builds an initial geometry, then optimises it with a force field (MMFF94 or UFF) to reach a low-energy conformer. The result is written as SDF with explicit 3D coordinates, which is the input most molecular viewers, docking programs and 3D printing pipelines expect.
Notes
- Generation can take a few seconds for medium-sized molecules and longer for large ones.
- Only one low-energy conformer is produced — not an ensemble.
- Hydrogens are added automatically because 3D geometry needs them.