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Head-to-head · Chemical Software

DWSIM vs COCO Simulator

  • Updated Sep 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score DWSIM #7 in Chemical Software 6.9/10 Free plan Free plan✓ 1 of 5 features Visit DWSIM
COCO Simulator #9 in Chemical Software 6.6/10 Free plan Free plan✓ 0 of 5 features Visit AmsterCHEM

DWSIM leads on 1 check, COCO Simulator on 0, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreDWSIM · 6.9/10
  • Free planboth
  • Most featuresDWSIM · 1 of 5

DWSIM scores higher on our rubric for chemical software: 6.9 against 6.6 out of 10; our editors rank them #7 and #9.

DWSIM offers mobile access; COCO Simulator doesn't.

DWSIM is the better fit for teams wanting free, flexible process simulation. COCO Simulator is the better fit for budget-conscious Windows process simulators.

  • DWSIM fits best

    Teams wanting free, flexible process simulation

  • COCO Simulator fits best

    Budget-conscious Windows process simulators

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature DWSIM 6.9/10 Visit ↗ COCO Simulator 6.6/10 Visit ↗
At a glance
Editor score 6.9 6.6
Ranking #7 in Chemical Software #9 in Chemical Software
Best for Teams wanting free, flexible process simulation Budget-conscious Windows process simulators
Pricing model Free Free
Starting price Not published Not published
Free plan ✓ ✓
Free trial — —
Deployment Desktop, Mobile Desktop
Platforms Windows, macOS, Linux, Android Windows
Support Docs, Community Community
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features DWSIM 1/5 · COCO Simulator 0/5
SDS management — —
Chemical inventory — —
Formulation management — —
Regulatory compliance — —
Mobile access ✓ (best) —
Specs
Deployment On-premises On-premises
Our review
Pros
  • Models flowsheets with thermodynamic packages and unit operations
  • Supports both steady-state and dynamic simulation
  • Runs on Windows, macOS, Linux, and Android
  • Free of charge, with voluntary donations rather than a paid plan
  • Combines thermodynamic packages, compound data and reaction numerics
  • Supports third-party CAPE-OPEN components in flowsheets
Cons
  • Focused on simulation, not chemical inventory or SDS management
  • No built-in formulation management or regulatory compliance
  • Documentation and community are the listed support channels
  • Windows desktop software, with no mobile access
  • Focused on process simulation, not chemical inventory or SDS management
  • Community support may not suit teams needing other support channels
Our verdict

DWSIM is a free, open-source chemical process simulator for engineers, educators, and researchers who need to model process flowsheets. It combines thermodynamic property packages with unit-operation simulation, and supports both…

Read the review →

COCO Simulator is a Windows-based environment for steady-state chemical process simulation. Its COFE graphical flowsheeting environment works with TEA thermodynamic property calculations, COUSCOUS unit operations and CORN reaction…

Read the review →
  1. DWSIMChemical Software 6.9Free plan
  2. COCO SimulatorChemical Software 6.6Free plan

Strengths and trade-offs

  • DWSIM — where it wins

    • Models flowsheets with thermodynamic packages and unit operations
    • Supports both steady-state and dynamic simulation
    • Runs on Windows, macOS, Linux, and Android

    Where it doesn't

    • Focused on simulation, not chemical inventory or SDS management
    • No built-in formulation management or regulatory compliance
    • Documentation and community are the listed support channels
  • COCO Simulator — where it wins

    • Free of charge, with voluntary donations rather than a paid plan
    • Combines thermodynamic packages, compound data and reaction numerics
    • Supports third-party CAPE-OPEN components in flowsheets

    Where it doesn't

    • Windows desktop software, with no mobile access
    • Focused on process simulation, not chemical inventory or SDS management
    • Community support may not suit teams needing other support channels
  • DWSIM6.9/10 · Free plan

    A flexible process simulator for teams that want desktop modeling without a license fee.

    Visit DWSIMFull verdict →
  • COCO Simulator6.6/10 · Free plan

    A free Windows simulator for steady-state flowsheets, thermodynamics, unit operations and reaction numerics.

    Visit AmsterCHEMFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update