CODESYS Reviews, Pricing, Features & Alternatives in 2026
CODESYS is a comprehensive hardware-independent automation software providing a complete development environment for creating industrial control applications based on the international IEC 61131-3 programming standard.
CODESYS provides you with a complete development environment for industrial automation. Instead of being locked into specific hardware, you can program controllers from different manufacturers using a single, standardized tool. You can develop applications using all five IEC 61131-3 programming languages, allowing you to choose the best method for your specific logic needs, whether it is ladder logic or structured text.
The platform handles everything from basic PLC programming to complex motion control and safety functions. You can also design integrated web-based visualizations to monitor your machines from any device. It is widely used by machine builders, system integrators, and hardware manufacturers who need a flexible, professional-grade environment to manage modern industrial internet of things (IIoT) requirements.
Screenshots & Interface
Key Features
Stop worrying about hardware compatibility and focus on your logic. CODESYS gives you a unified environment to program, visualize, and manage your industrial controllers with professional-grade engineering tools. Here is how you can streamline your automation projects:
IEC 61131-3 Programming
Develop your applications using all five standard programming languages including Ladder Diagram and Structured Text within one integrated tool.
Integrated Visualization
Create professional user interfaces directly in the development environment to monitor and operate your machines via web browsers.
Fieldbus Configurator
Configure common industrial networks like EtherCAT, PROFINET, and EtherNet/IP without needing external third-party software tools.
Motion Control
Program complex multi-axis movements and CNC functions using integrated libraries that follow PLCopen standards for precision.
Safety Integration
Develop safety-critical applications within the same environment to meet SIL2 or SIL3 requirements for your industrial machinery.
IIoT Connectivity
Connect your controllers to the cloud using built-in protocols like MQTT and OPC UA for real-time data analysis.
Integrations
OPC UA
MQTT
EtherCAT
PROFINET
EtherNet/IP
CANopen
Modbus
Microsoft Azure
AWS
Git
Pricing Plans
You can download the CODESYS Development System for free to start your engineering projects immediately. While the core software is free, you pay for specific runtime licenses and professional add-ons through the CODESYS Store. This modular approach lets you pay only for the capabilities your specific hardware requires.
Based on feedback from automation engineers and system integrators, here is what you should consider when choosing CODESYS for your projects:
Pros
Hardware independence allows you to switch controller brands easily
Free base development software reduces your initial project costs
Standardized programming makes it easier to find skilled engineering talent
Extensive library ecosystem speeds up your application development time
Cons
Steep learning curve for users new to IEC standards
Store-based licensing can be confusing for first-time buyers
Documentation is technically dense and requires prior automation knowledge
Who Should Use CODESYS?
Perfect for automation engineers and machine builders who need a hardware-independent platform to program diverse industrial controllers and IIoT devices.
Best for Company Sizes
small-business
mid-market
enterprise
Popular Industries
manufacturing
energy
automotive
Our Verdict
CODESYS is a top-tier choice if you want to avoid vendor lock-in and maintain flexibility across different hardware platforms. The free entry point for the development environment is a massive advantage for testing and small-scale engineering.
While the professional add-ons and runtime licenses add to the cost, the ability to use a single tool for PLC, Motion, and HMI is highly efficient. Recommended if you are looking for a standardized, future-proof way to manage complex industrial automation and IIoT deployments.
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