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Head-to-head · Chemical Software

DWSIM vs ChemInventory

  • 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
ChemInventory #8 in Chemical Software 6.7/10 Free plan · paid from $56/yr · 30-day trial Free plan✓ 4 of 5 features Visit ChemInventory

DWSIM leads on 0 checks, ChemInventory on 3, and 3 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 featuresChemInventory · 4 of 5

DWSIM scores higher on our rubric for chemical software: 6.9 against 6.7 out of 10; our editors rank them #7 and #8.

ChemInventory offers sds management; DWSIM doesn't. ChemInventory offers chemical inventory; DWSIM doesn't. ChemInventory offers regulatory compliance; DWSIM doesn't. On deployment, ChemInventory gives you Both where DWSIM offers On-premises.

DWSIM is the better fit for teams wanting free, flexible process simulation. ChemInventory is the better fit for labs needing affordable chemical inventory.

  • DWSIM fits best

    Teams wanting free, flexible process simulation

  • ChemInventory fits best

    Labs needing affordable chemical inventory

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 ↗ ChemInventory 6.7/10 Visit ↗
At a glance
Editor score 6.9 6.7
Ranking #7 in Chemical Software #8 in Chemical Software
Best for Teams wanting free, flexible process simulation Labs needing affordable chemical inventory
Pricing model Free Free plan + paid
Starting price Not published Not published
Free plan ✓ ✓
Free trial — —
Deployment Desktop, Mobile Cloud, Self-hosted
Platforms Windows, macOS, Linux, Android Web
Support Docs, Community Email, Docs
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features DWSIM 1/5 · ChemInventory 4/5
SDS management — ✓ (best)
Chemical inventory — ✓ (best)
Formulation management — —
Regulatory compliance — ✓ (best)
Mobile access ✓ ✓
Specs
Deployment On-premises Both
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
  • Search by structure, name, CAS number, barcode, or custom fields
  • Attach SDS files, track containers, and perform barcode stocktaking
  • Watchlists, regulatory reporting, order approvals, and lab sharing
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
  • Free plan has no API access
  • Paid individual plans are not named on the pricing page
  • Focused on inventory rather than formulation management
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 →

ChemInventory is chemical inventory software for research laboratories and research groups. It manages chemical containers, locations, orders, hazard information, SDS documents, and related files. Users can search by chemical structure,…

Read the review →
  1. DWSIMChemical Software 6.9Free plan
  2. ChemInventoryChemical Software 6.7Free plan · paid from $56/yr · 30-day trial

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
  • ChemInventory — where it wins

    • Search by structure, name, CAS number, barcode, or custom fields
    • Attach SDS files, track containers, and perform barcode stocktaking
    • Watchlists, regulatory reporting, order approvals, and lab sharing

    Where it doesn't

    • Free plan has no API access
    • Paid individual plans are not named on the pricing page
    • Focused on inventory rather than formulation management
  • DWSIM6.9/10 · Free plan

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

    Visit DWSIMFull verdict →
  • ChemInventory6.7/10 · Free plan · paid from $56/yr · 30-day trial

    Affordable chemical inventory management with structure search, SDS files, and regulatory tools.

    Visit ChemInventoryFull verdict →

More comparisons

Guides on chemical software

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update