CODESYS is a leading manufacturer-independent IEC 61131-3 automation software for engineering control systems.
Best easySoft Alternatives ranked by AI · updated Aug 2026
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easySoft is Eaton's programming environment for easyE4 and related compact control devices. It provides ladder, function-block, structured-text, and sequential-function-chart programming with simulation and diagnostics.
Top 6 easySoft alternatives
Millenium is a graphical programming environment for Crouzet's Millenium smart relays and compact controllers. It targets electricians, machine builders, and control engineers,...
Pros
- Free programming software for compatible Crouzet controllers
- Function-block programming fits compact automation tasks
- Includes simulation and online monitoring tools
Cons
- Limited to Crouzet Millenium hardware
- Smaller ecosystem than Siemens, Rockwell, or CODESYS
- Not designed for large PLC or distributed-control projects
3
LOGO! Soft Comfort
Siemens
LOGO! Soft Comfort is the programming environment for Siemens LOGO! compact controllers. It supports function-block and ladder programming, simulation, diagnostics, and network...
Pros
- Strong alternative for compact Siemens control systems
- More widely adopted than Millenium in industrial environments
- Includes simulation, diagnostics, and network configuration
Cons
- Requires Siemens LOGO! hardware
- Paid software where Millenium's environment is free
- Less suitable than CODESYS for complex PLC applications
Paid; license pricing varies
4
Zelio Soft
Schneider Electric
Zelio Soft is the programming tool for Schneider Electric Zelio Logic smart relays. It provides ladder and function-block programming, simulation, and diagnostics...
Pros
- Direct counterpart to Millenium for smart-relay applications
- Supports both ladder and function-block programming
- Simulation helps validate logic before deployment
Cons
- Restricted to Zelio Logic hardware
- Less capable than general-purpose PLC platforms
- Limited scalability for growing automation projects
Free download; hardware required
5
Do-more Designer
AutomationDirect
Do-more Designer is the programming and diagnostics environment for AutomationDirect Do-more PLCs. It targets machine builders and controls technicians with ladder logic,...
Pros
- Free IDE with strong diagnostics and development tools
- More capable than Millenium for mid-range machine control
- Good value through AutomationDirect's hardware pricing
Cons
- Limited to Do-more PLC hardware
- Less suitable for international projects standardized on major vendors
- Requires learning a platform-specific instruction set
Free; compatible hardware required
6
OpenPLC Editor
Thiago Rodrigues Alves
OpenPLC Editor is an open-source IEC 61131-3 programming environment for creating PLC logic and running it on supported OpenPLC targets. It is...
Pros
- Free and open-source alternative to proprietary controller tools
- Supports standard PLC programming concepts and languages
- Useful for education, prototyping, and custom hardware
Cons
- Smaller commercial support ecosystem than Crouzet or Siemens
- Hardware compatibility and industrial certification are more limited
- Setup can require more technical work than Millenium
Free and open source
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