Learn PLCs free

CODESYS vs iFIX

Comprehensive comparison of two leading PLC programming platforms

CODESYS GmbH (3S-Smart Software Solutions)GE VernovaUpdated 2026

CODESYS

CODESYS GmbH (3S-Smart Software Solutions)

85
Overall Score
Price:$
Learning:beginner-intermediate
Adoption:70%

FREE basic version - perfect for learning

iFIX

GE Vernova

58
Overall Score
Price:$$$
Learning:intermediate
Adoption:22%

Battle-tested in regulated industries (pharma, power, utilities)

Overall Winner

CODESYS leads with an overall score of 85/100

CODESYS is the stronger overall choice with better pricing. However, iFIX may be preferable if you prioritize community support or if you're already committed to the GE Vernova ecosystem.

Score Breakdown

CategoryCODESYSiFIX
Overall
85
58
Pricing
100
50
Ease of Use
70
80
Features
86
50
Industry Adoption
83
44
Community Support
100
91
Career Value
77
56

💰Pricing Comparison

CODESYS ($) is significantly more affordable than iFIX ($$$). CODESYS costs between $0 and $2 000, while iFIX ranges from $4 000 to $25 000.

📚Learning Curve

iFIX (rated 3/10) is easier to learn than CODESYS (rated 5/10). iFIX typically takes 2-3 months to learn, while CODESYS requires 2-4 months. This makes iFIX better for beginners.

⚙️Features & Capabilities

CODESYS offers 11 key features including safety programming, motion control, robotics integration. iFIX provides 10 key features. CODESYS offers a comprehensive feature set for industrial automation.

🏭Industry Adoption

CODESYS has 70% market adoption compared to iFIX's 22%. CODESYS dominates in Europe, Asia-Pacific, North America, while iFIX is strongest in North America, Europe, Asia-Pacific. CODESYS's higher adoption means more job opportunities and community resources.

🔌Hardware Compatibility

iFIX supports 6+ PLC brands including GE, Allen-Bradley, Siemens, making it highly versatile. CODESYS is specifically designed for Over 500 manufacturers including Schneider Electric, Wago, Eaton, ifm, Festo, Bosch Rexroth hardware, offering deeper integration but less flexibility.

💼Career Prospects

CODESYS offers stronger career prospects with 70% market adoption and official certification programs. iFIX has 22% adoption and is also backed by certifications. For maximum employability, CODESYS expertise is more in-demand.

CODESYS Overview

Key Strengths

  • FREE basic version - perfect for learning
  • Supports wide range of hardware (500+ manufacturers)
  • Pure IEC 61131-3 standard compliance
  • Excellent for education and training

Limitations

  • Less recognized brand than Siemens/Rockwell
  • Professional features require paid add-ons
  • Fewer job postings specifically for CODESYS

Best For

Learning PLC programming and IEC 61131-3Students and hobbyists (free version)OEM machine builders

iFIX Overview

Key Strengths

  • Battle-tested in regulated industries (pharma, power, utilities)
  • Strong Proficy ecosystem (Historian, Workflow, Plant Apps)
  • Excellent alarm management depth
  • Enterprise-grade security and audit trails

Limitations

  • UI feels dated compared to Ignition Perspective or AVEVA System Platform
  • VBA-based scripting is increasingly out of fashion
  • Roadmap ambiguity since GE Digital became GE Vernova in 2024

Best For

Power generation plantsMunicipal water and wastewater utilitiesPharmaceutical manufacturing with 21 CFR Part 11 needs

Recommendations

For Beginners

Both are suitable

For Professionals

CODESYS

Budget-Constrained

CODESYS

Enterprise Use

CODESYS

Frequently Asked Questions

Which is better: CODESYS or iFIX?

CODESYS is the stronger overall choice with better pricing. However, iFIX may be preferable if you prioritize community support or if you're already committed to the GE Vernova ecosystem.

What is the price difference between CODESYS and iFIX?

CODESYS ($) is significantly more affordable than iFIX ($$$). CODESYS costs between $0 and $2 000, while iFIX ranges from $4 000 to $25 000.

Which is easier to learn: CODESYS or iFIX?

iFIX (rated 3/10) is easier to learn than CODESYS (rated 5/10). iFIX typically takes 2-3 months to learn, while CODESYS requires 2-4 months. This makes iFIX better for beginners.

Which has better career prospects?

CODESYS offers stronger career prospects with 70% market adoption and official certification programs. iFIX has 22% adoption and is also backed by certifications. For maximum employability, CODESYS expertise is more in-demand.

Related Comparisons

Free PLC simulator

Try one free, right now

Skip the download queue — write ladder logic in your browser and run it against real machine scenarios. 8 PLC dialects, free account, no credit card.

Practice PLCs free →