Professional interactive tools for physics teachers. Textbook-standard diagrams, exam-ready exports — right in your browser.
// available tools
Each tool is built to the DBE-CAPS standard — drop diagrams straight into question papers and worksheets.
Drag-and-drop circuit diagrams with resistors, cells, switches, ammeters, voltmeters and more. Export 4× high-res PNG for exam papers.
Draw organic molecules using skeletal, structural, and 3D representations. Perfect for chemistry-based exam questions.
Create free-body diagrams, inclined plane problems, and force vector diagrams with labelled arrows and angles.
// how it works
Click any live tool — no login, no download. It opens immediately in your browser.
Drag components, draw wires, add labels. Everything snaps to grid for perfect alignment.
Hit Export PNG for a sharp 4× image ready to drop into Word, Google Docs, or any layout software.
// about physicstools
PhysicsTools is a free, browser-based platform developed by SimLabs to give physics educators professional-grade tools — without the price tag or the software install.
Every tool is designed to the DBE-CAPS standard, so diagrams look exactly like what students see in past papers.
Circuit symbols and notation match the DBE-CAPS standard used in South African physics examinations.
No login, no loading screen. Open a tool and start working in under three seconds.
Diagrams export at 4× resolution — sharp when printed or embedded in a PDF.
Molecule Builder and Mechanics Builder are in development. New tools ship regularly.
Open CircuitBuilder and have a diagram ready to export in under two minutes.
// the team behind physicstools
SimLabs is a South African edtech company building free, accessible tools for science and maths educators. We believe every teacher — regardless of resources — deserves professional-grade software.
PhysicsTools is one of several platforms we maintain. Visit our main site to explore the full range of simulations, resources, and tools.
Visit SimLabsAll SimLabs tools are free for teachers and students — no paywalls, no subscriptions, no tracking.
The full SimLabs platform includes interactive simulations across physics, chemistry, and mathematics.
Designed with the South African CAPS curriculum in mind, and used by teachers across the country.