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Draw like you mean it
Pointy-top hex snapping keeps bond angles honest without nagging you. Sketch as fast as you would on paper.
Hexink is a hex-snapping molecular editor for the iPad and the web. No bloated toolbars, no Java, no learning curve — just a warm canvas, a fast pencil, and instant Hill-formula readouts.
Free during alpha · Works offline · No signup
Every interaction is one tap, one stroke, one gesture. The editor stays out of your way and the chemistry stays correct.
Pointy-top hex snapping keeps bond angles honest without nagging you. Sketch as fast as you would on paper.
Implicit hydrogens, charges, and bond orders update in real time. One tap auto-promotes bonds to satisfy valence.
Molar mass, net charge, and a copyable Hill formula sit in a tiny pill while you draw.
Vector SVG for slides and papers, crisp 2× PNG for the camera roll. No watermark, no signup.
Two-finger pan and pinch, safe-area aware UI, Apple Pencil hover. Add to Home Screen and it runs full-bleed.
Drawings live in your browser. No accounts, no telemetry by default, no cloud holding your homework hostage.
Solar canvas, ad-free exports, reaction arrows, and cloud sync. Support an indie chemistry tool and unlock the studio.