Silky smooth chemical drawing, finally. Free for everyone, and open source.
Name to Structure
The best Name to Structure in the world, try below
Selection
Drag a box. Shift-click to add more. ⌘ A for everything.
Actions panel
Everything you can do to the selection, right beside it.
Catalytic cycles
Draw a circle and put the intermediates on it. The arrows fit themselves.
Keyboard drawing
ChemDraw’s hotkeys. Point at an atom and press a key.
What it does
ChemDraw Professional
Octet Draw
$1,355
Free
a year, per person
for everyone
List price from Revvity’s shop, 19 October 2026.
Opens your ChemDraw files
CDXML and CDX, in and out.
ChemDraw’s shortcuts
Your hands already know them.
No licence key
No account, no sign-in, no trial.
Pastes into Word and PowerPoint
Vector, at true size.
Name to structure
Type a name, get the molecule. And back.
NMR prediction
¹H and ¹³C, from the drawing.
Catalytic cycles
Drawn in one step.
Command palette
Every action, one search away.
Mac, Windows and Linux
Native on Apple silicon. Works offline.
Open source
Read the code, report a problem or ask for a feature on GitHub.
The Octet apps
Octet Draw
Structures, reactions and schemes.
Download
Octet Model
Molecules in 3D.
Coming soon
Octet NMR
NMR spectra.
Coming soon