Why Veylora exists
Many of the most important ideas in science are invisible or hard to observe directly: water molecules crossing a membrane, electrons moving through a circuit, a nerve impulse travelling along an axon, gravity bending the path of light. Textbooks describe these ideas with words and static diagrams. Students understand them faster when they can change the conditions themselves and see what happens.
Veylora is a free collection of interactive simulations. Each one focuses on a single concept and pairs the model with a written study guide (how it works, key formulas and terms, real-world applications and common misconceptions) and a self-assessment quiz with instant feedback and explanations.
Meet the creator
Kyle C. Leyson
Creator and developer of Veylora · Bachelor of Science in Information Technology (BSIT) student at Cebu Eastern College
“I built Veylora because interactive science visualization shouldn’t be locked behind expensive subscriptions or paywalls. Many high school, nursing, and college STEM students learn much faster when they can click, drag, and experiment with concepts visually, so I created this platform to make hands-on simulations, clear study guides, and self-assessment quizzes 100% free and accessible to every student.”
Veylora is designed, written and coded by Kyle from Cebu City, Philippines. Every simulator is built from scratch for the site, and every study guide is written originally and checked against open textbooks and other reputable sources, which are listed at the end of each page.
Who it is for
- High school students exploring biology, chemistry, physics and earth science, or preparing for exams.
- College STEM students who want to see the models behind their lectures, from calculus and matrices to optics and orbits.
- Nursing and pre-medical students who want to visualize anatomy and physiology, such as the heart, kidneys, nerves and immune system.
- Teachers looking for a demonstration to project in class or a free activity to assign.
- Lifelong learners who are simply curious about how the world works.
How each simulator is built
Every simulator is a simplified model. The simplifications keep the core science correct while letting the model run smoothly on an ordinary laptop or phone, and each page explains what its model leaves out.
- Every simulator comes with written instructions, a reset button and controls that work with a mouse, a touch screen or a keyboard.
- Every page includes a study guide written in plain language, with the formulas, key terms, applications and references.
- Anatomy and physiology content is presented strictly as academic and classroom reference, never as medical advice. See the educational and medical disclaimer.
What is available today
The lab currently has 95 interactive simulators across 10 branches of science: biology, chemistry, physics, anatomy and physiology, astronomy, earth science, ecology, botany, zoology, and mathematics and scientific modeling. New topics are added only when they are complete and tested. Browse them all on the simulations page.
Free for every student — and how it is funded
Veylora is completely free for students and educators. There are no accounts, no subscriptions and no locked features, and there never will be.
To keep it that way, the site shows a small number of non-intrusive display ads. They are clearly labelled, kept away from the simulators and their controls, and never placed inside a quiz. The income helps pay for running and expanding Veylora, and it also helps support my college tuition. If Veylora has helped you learn, the best way to support it is simply to use it and share it with classmates and teachers. Thank you for being here.
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Get in touch
Found an error, have an idea for a simulator, or want to share how you use Veylora in class? Send a message through the contact form. Every message is read personally.