Build, Program, and Simulate Industrial Automation in Your Browser
Sim Assist combines a 3D scene editor, IEC 61131-3 PLC programming (Function Block Diagrams and Structured Text), real-time simulation at 60 fps, and OPC UA connectivity — all in one browser-based platform.
Everything you need to simulate industrial automation
From 3D scene building to PLC programming and real-time execution — design, test, and validate your automation logic before deploying to real hardware.
3D Scene Editor
Import 3D models, build your automation environment visually, add physics, and organize components in a hierarchical tree. Intuitive navigation with familiar controls.
PLC Programming
Program with visual Function Block Diagrams or Structured Text. Full IEC 61131-3 block library including logic gates, timers, counters, edge detection, latches, math, and comparison.
Real-Time Simulation
Run your PLC programs at 60 fps and see them drive the 3D scene in real time. Debug with trace and oscilloscope views, step through execution, and monitor diagnostics.
OPC UA Integration
Connect your simulation to real PLCs. Browse tags, read and write values, and test your automation logic against physical hardware — all from your browser.
From classroom to factory floor
Whether you're a student learning PLC programming, an OEM building machine demos, or a system integrator preparing for commissioning — Sim Assist fits your workflow.
Learn & Teach
Practice PLC programming in a safe, browser-based environment. No expensive hardware, no risk of damage — perfect for students, schools, and corporate training.
Virtual Commissioning
Test and validate your automation logic before deploying to real machines. Catch errors in the browser, not on the factory floor.
Machine Demos
Import your own 3D models and show customers exactly how the automation works — live and interactive, not a static PDF or PowerPoint.
Remote Collaboration
Share simulation projects with your team, clients, or students anywhere in the world. All you need is a browser.
What makes it different
No installs. No expensive software. Import your models, write your PLC logic, and share a working demo — all from your browser.
Everything runs in your browser — no downloads, no licenses, no hardware
Import your machine models and bring them to life with automation
3D physics and PLC logic run together — outputs drive the scene in real time
Send a link and let anyone explore your simulation — no account needed
Questions & Answers
Build, simulate & share machine twins in your browser
Student
€0.00/mo
For students and self-study — non-commercial use only
Upload GLB models
Full physics engine
Material selection
Small scenes
Save & share via link
Student / non-commercial watermark
Creator
€59.00/mo
For freelancers and engineers using Sim Assist commercially
14-day free trial
Everything in Student
Larger scenes
Higher object & performance limits
No watermark
Commercial use allowed
Export (links, video)
Team
€119.00/mo
For collaborating on machines and production lines
14-day free trial
Everything in Creator
Team collaboration (2-10 users)
Shared model libraries
Scene & version management
Private projects
Higher scene limits
Ready to simulate your automation?
Start building 3D scenes and programming PLCs in your browser today. No installation required.