Assess any chemical process against all twelve principles.
Interactive rubrics, standalone calculators, and a single holistic score — for students, educators and bench chemists. Free and browser-local.
The twelve principles of green chemistry.
Each principle has its own guide page. Click any node on the dodecagon to explore.
Prevention
It is better to prevent waste than to treat or clean up waste after it has been created. Design processes that minimise by-product generation from the start.
Read the full guideStandalone calculators for specific metrics.
Each tool computes one green-chemistry metric with live charts and PDF/CSV export. A flagship calculator is live in every category — the full library of 30 is on the way.
A hub for holistic, systems-level sustainable science.
DodecaGreen is an open educational portal. Starting from the twelve principles of green chemistry, we have developed a growing suite of calculators, rubrics and resources to help researchers, students and educators maintain a critical view of their work — and push themselves to design ever more sustainable processes and systems.
The goal is not just compliance with a checklist, but a genuinely holistic way of thinking: one that holds together efficiency, safety, environmental impact and systemic trade-offs in a single view.