Open-source chemical structure editor. Pure Rust, zero C/C++ dependencies.
Draw atoms, bonds, and rings with CPK element colors. Single, double, triple, aromatic bonds. Wedge and dash for stereochemistry. ChemDraw-compatible shortcuts.
SMILES, MOL V2000/V3000, SDF, CML, SVG, PNG export. Read ChemDraw XML (CDXML). Paste SMILES or MOL from clipboard. Lossless format support.
Instant 3D coordinate generation. Ball-and-stick model with orthographic projection. Rotate, zoom, inspect. Molecular properties: MW, logP, TPSA, QED.
No C/C++ FFI. No RDKit. Compiles from source with a single cargo build. Fast startup, low memory. Runs fully offline.
Switch between dark and light themes at runtime via the View menu. Persistent settings. Designed for long chemistry sessions. The only major editor with built-in dark mode.
SMARTS substructure search. Morgan & ECFP fingerprints. Tautomer enumeration. Isotope labeling. Formal charges. Reaction mechanism editor with arrows and curly arrows. IUPAC name lookup via PubChem.
Under active development. Stay tuned.