No install · No download

A PLC Simulator That Needs Zero Install

Open a tab. Write a rung. Get graded. No MSI, no DMG, no admin password, no 20 GB vendor install, no Windows VM, no licence file.

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Join 700+ learners practicing PLC programming

The problem

Why "no install" matters more than it sounds

Every other learner-facing PLC simulator asks you to install something. Studio 5000 Logix Emulate is 10 GB and locks to Windows. TIA Portal V17 with PLCSIM Classic is 20 GB, needs admin rights, and refuses to install on half of corporate laptops. Codesys is lighter but the SoftPLC demo shuts down after two hours. Factory IO is Windows-only and needs a separate vendor IDE to drive it.

For a learner on a school Chromebook, a work-issued MacBook, or a Linux box, each of those installs is either impossible or a weekend of VM and licence wrangling before a single rung is written.

Workarounds that waste your time

What people try, and why it breaks

Parallels or VMware on Mac

$100/yr for Parallels, plus a Windows licence, plus a vendor PLC IDE. And you still fight keyboard layouts (⌘ vs Ctrl) in every TIA Portal shortcut.

Wine on Linux

Studio 5000 refuses to install. TIA Portal partially works until it crashes on a complex project. No vendor supports it officially.

Dual-boot

A weekend of partitioning, another weekend of driver hunts, and you still need a Windows licence and a vendor PLC licence after all that.

Cloud Windows (Azure, AWS, Windows 365)

Monthly subscription, latency on every click, and RDP that barely works on a Chromebook.

Dev-mode unlock on a Chromebook

Voids the warranty on a school-issued device and your IT department reverts it the moment you connect to the school wifi.

Android or iOS ladder apps

Almost all are rudimentary toys; small screen destroys productivity; no real dialect support.

The "just works" version

What you actually get from "no install"

Browser-only execution

The ladder editor, scan-cycle runtime, and scored scenarios all live in JavaScript + WebAssembly inside the tab. Chromium, Firefox, Safari — all three are fine.

Offline via PWA

Install the app to your dock or home screen. Scenarios you have opened before work offline; progress syncs when you reconnect.

Any hardware

Runs on a five-year-old Chromebook, an M-series MacBook, a Linux desktop, a tablet with an external keyboard, or the locked-down work laptop you were told to use.

Getting started

Three steps, no install, no download

1. Open a browser tab. Anything Chromium, Firefox, or Safari-based from the last three years works.
2. Sign up free. Email and password. No credit card. Takes 30 seconds.
3. Write a rung. Pick a scenario like motor start/stop and write your first ladder logic. The scan cycle starts immediately.

Total time to first rung: under two minutes on any device you already own.

Performance

What to expect, honestly

Good

Modern Chromium and Safari with hardware acceleration.
Any laptop from the last 5 years.
iPad with an external keyboard.

Degraded

Phones — possible, but small screen destroys the editing experience.
Very old browsers (IE11, Safari <14) — unsupported.
Aggressive corporate proxies that block WebAssembly — rare, but they exist.

What you can practise

All 40 scenarios run in the tab

Browse all scenarios or see how they map to HVAC and packaging work.

Questions

No-install PLC simulator FAQ

Yes. It is a web application — you open a URL and write PLC code in the tab. Nothing is downloaded to your device beyond the normal browser cache. No MSI, no DMG, no admin password prompt.

Two minutes to first rung.

No install. No download. No admin password. Free tier forever.

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