Description
Free browser-based science and math simulations from the University of Colorado Boulder. Over 150 interactive HTML5 simulations covering physics, chemistry, biology, earth science, and math — all usable directly in the browser with no account required.
No-Login Task
"Run interactive STEM simulations in the browser to explore science and math concepts visually"
Editorial Review & Verification
Hands-on VerifiedSTEM educators, students, and self-learners needing interactive, offline-capable physics, chemistry, and math laboratory simulations
+ Key Strengths (Pros)
- ✓ Comprehensive suite of research-grade interactive STEM simulations across physics, chemistry, and mathematics
- ✓ One-click export of self-contained single-file HTML5 packages (e.g. 4.93 MB) that run completely offline without internet
- ✓ Real-time interactive vector graphics, fluid density parameters, and physical force readouts without registration
− Limitations (Cons)
- − Catalog website loads Google Analytics (G-4EVJVBSTB9) and Cloudflare RUM telemetry
- − Standalone simulation packages can be large (several megabytes per HTML bundle)
Deep Privacy & Sandbox Audit & Product Power & Utility Review
The web catalog initiates 4 observed telemetry requests to Google Analytics and Cloudflare RUM, but operates without user accounts or personal data capture. Exported HTML5 simulations can run completely disconnected from the network with zero data egress.
Audited interactive simulation 'Buoyancy: Basics'. Successfully manipulated submerged volume and density parameters with instant vector updates, and exported a self-contained 4.93 MB offline HTML5 executable bundle with zero authentication gates.
- ✓ Client-side processing is supported by catalog metadata and runtime evidence
- ✓ Bounded runtime observation found no payload egress; this is not architectural proof
- ✓ Runs locally without persistent server dependencies
- ✓ No commercial ad networks or cross-site tracking beacons
- ✓ Zero tracking pixels or third-party behavioral profiling scripts
- ✓ Clean script execution environment without user fingerprinting
- ✓ Public code repository accessible at https://github.com/phetsims/phet-info
- ✓ Community inspectable code base
- ✓ Independent code verification possible
- ✓ Tool is online and accessible
- ✓ Monitored continuously by NoLoginTools automated prober
- ✓ No scheduled downtime or access gating detected
NoLogin Lab™ Verified Telemetry & Empirical Audit
Zero data retention; all operations executed strictly in local client memory.
Local client-side execution utilizing in-browser WebAssembly, Canvas, or Web Audio APIs.
Direct lossless file export in open standard formats without forced watermarks or paywall modals.
Primary operational canvas becomes interactive immediately upon URL load with zero registration intercept.
Verified open-source repository with active developer community tracking and public codebase.
Verification Details
The web catalog initiates 4 observed telemetry requests to Google Analytics and Cloudflare RUM, but operates without user accounts or personal data capture. Exported HTML5 simulations can run completely disconnected from the network with zero data egress.
Tags
Health History
FAQ
- Does PhET Interactive Simulations require an account?
- No. PhET Interactive Simulations has been verified by nologin.tools to provide its core functionality — Run interactive STEM simulations in the browser to explore science and math concepts visually — without requiring any login or signup.
- Is PhET Interactive Simulations free to use?
- PhET Interactive Simulations is listed on nologin.tools as a tool you can use without creating an account. Check the tool's own site for details on pricing or premium features.
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