Clipboard to molecule, instantly.
Copy a molecular file, hit a hotkey, see it rendered. Or let Pasteur watch your clipboard and render automatically. No X11. No file transfers.
- Auto-detects PDB, SDF, XYZ, and more.
- Preloads the viewer for sub-second reveals.
- Privacy-first: clipboard reads only on explicit action (or opt-in watching).
Built for fast clipboard workflows.
Pasteur stays out of your way until you need it—then it renders instantly.
Copy
Copy a PDB, mmCIF, SDF/MOL, MOL2, or XYZ from anywhere—browser, paper, terminal.
Hotkey
Hit the global shortcut. Pasteur reads the clipboard (or watches it, if you opt in).
Render
A floating viewer appears instantly. The Mol* engine is preloaded for sub-second reveals.
Always ready
The viewer panel is prewarmed on launch—no slow boot when inspiration hits.
Privacy-first
No servers. Clipboard reads happen only on explicit action (or optional watching).
Menu bar native
No Dock icon. No X11. Just a lightweight tool that behaves like macOS.
Formats Pasteur understands.
Pasteur auto-detects the structure format and loads it without you thinking about it.
Macromolecules, proteins, ligands—great for quick inspection and validation.
Small molecules and chemistry formats, straight from tool output or databases.
Simple coordinates, ideal for quick tests, examples, and generated structures.
SMILES/RDKit WASM is on the roadmap. Keep your workflows local and fast.
Ready to try it?
Download the macOS app, or inspect the source code on GitHub.