Build freely
Use the sandbox canvas to arrange atoms, connect bonds, adjust charges, and see formulas emerge as structures become stable.
696compound entries for learning and lookup
695discovery challenges in the current catalog
100+elements with valence, shells, and category data
A lab bench that fits in your hand.
Dalton turns chemistry into a direct manipulation experience: place atoms, form bonds, validate structures, and learn by making.
Discover compounds
Guided challenges invite learners to assemble molecules and grow a personal discovery history.
Explore elements
Browse an element library with shells, valence behavior, category colors, masses, and quick reference data.
Convert structures
Work with SMILES and InChI codes for chemistry workflows that bridge classroom sketches and real identifiers.
Local-first learning
Core chemistry data and saved progress live on the device, with graceful offline behavior when network services are unavailable.
Public data lookup
When online, Dalton can use chemistry services and PubChem to help parse, validate, and enrich molecular structures.
Designed for curious chemistry practice.
The app keeps the interface focused: a molecule canvas, clear element tools, fast feedback, and compact reference screens for repeated learning.
Privacy-first by design
Read policy
No accounts, ads, third-party analytics, or personal data collection. Progress and settings stay local on the device.
Questions or support: lsrnldfsb@gmail.com