Paste the SMILES
Paste one or more SMILES into the box and press Load, or press Ctrl+V on the drawing to add it next to what's there.
WAVESPEED AI SMILES TO STRUCTURE Structures stay on your device
100% FREE
SMILES to Structure ConverterPaste SMILES. See the molecule.
Paste any SMILES string, including stereo, charges and isotopes, and get a clean 2D drawing you can edit.
Read the formula, masses, logP, TPSA and InChIKey, then export the drawing or a structure file.
Stereo, charges, isotopesPNG · SVG · MOL · SDFFiles stay on your device
No sign-up No upload Nothing to install
Loading the structure editor…
Drawings and files are processed in your browser and never uploaded.The chemistry engine downloads once (about 3 MB) and is then cached.
THREE SIMPLE STEPS
How to use the SMILES to Structure
Check and edit
The structure is laid out automatically. Fix or extend it with the drawing tools; formula, mass and identifiers update as you go.
Export
Download PNG or SVG images, or MOL, SDF, InChI or canonical SMILES files.
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SMILES to Structure FAQ
Is the SMILES to structure converter free?
Yes, with no account, no watermark and no limits.
Which SMILES are supported?
Standard SMILES with aromatic atoms, stereo (@, @@, / and \), charges, isotopes and dot-separated fragments, plus CXSMILES. Text after the SMILES is used as the structure's name.
Is my SMILES sent to a server?
No. It is read and drawn in your browser by a chemistry engine that downloads once; nothing you paste leaves your device.
Can I convert the other way, structure to SMILES?
Yes. Draw or open any structure and the canonical SMILES, InChI and InChIKey appear in the panel, ready to copy.
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SMILES to Structure Converter
Stereo, charges, isotopes · PNG · SVG · MOL · SDF · Files stay on your device