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Accessible and straightforward front-end GUI for pre- and post-processing GAMESS, NWChem, MOPAC, LAMMPS, Gromacs and Quantum ESPRESSO.

Try It Free Get FREE, STUDENT, or PROFESSIONAL (Trial) Edition Learn more Purchase Watch Demos 60+ Videos Ready

What is Winmostar?

What is Winmostar? slider
All-in-One Workflow: Build structures, run simulations, analyze results, and visualize—all in one interface.
Multi-Solver Support: Works with MOPAC, GAMESS, LAMMPS, GROMACS, Quantum ESPRESSO, and more.
Quick Solver Setup: Use our dedicated installer to get supported engines running in minutes—no complex configuration needed.
Windows-Based Installation: Install Winmostar on any Windows PC; run solvers locally or on network-connected Linux workstations.
Comprehensive Learning Resources: Video tutorials, detailed manual, and FAQs guide you every step of the way.
Cost-Effective Performance: High quality at a lower price than legacy tools—flat licensing no matter how many cores you add.
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Proven and Widely Adopted

Deployed in manufacturing, teaching, and research; published papers and patents by Winmostar users highlight its robust features and support. (As of April 1, 2025)

Countries Leveraging

74+

Universities Served

1014+

Citation in Academic Papers

276+

Client Companies

190+

Licenses Issued

37,500+

Adopting Universities

  • University of Oxford
  • University of Cambridge
  • Massachusetts Institute of Technology
  • Stanford University
  • Yale University
  • Harvard University
  • California Institute of Technology
  • Princeton University
  • National University of Singapore
  • Imperial College London
  • University College London
  • ETH Zurich
  • University of Pennsylvania
  • University of Chicago
  • Johns Hopkins University
  • University of California, Los Angeles
  • Columbia University
  • Cornell University
  • University of California, San Diego
  • University of Toronto
  • and more
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Features

Packed with tools for advanced industrial and academic research.

Features slider
Create diverse molecular and crystal structures.
Configure simulations with simple, flexible settings.
Seamlessly switch compute resources—local PCs or remote servers—as needed.
Automate file handling and process workflows.
Analyze results, visualize outputs, and compute multiple properties.
Convert and export simulation data in various formats.
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User Support

Extensive support ensures beginners feel confident.

Proficient guidance by specialists actively engaged in cutting-edge research.
Comprehensive user manual covering all features and functions.
Regular monthly updates and full reports for any detected issues.
More than 60 video tutorials designed for beginners.

Compare Plans

FREE Edition

$0

  • Import, export, and visualization of common molecular structure file formats
  • Accessible editing of molecular and crystal structures
  • Calculations using MOPAC and CNDO/S (with limits, file mode only)
  • Analysis of molecular shape and geometry (surface area, volume)
  • Learn more

PROFESSIONAL Edition Economy or STUDENT Edition

$0
Student
$600〜
Educational Institution
$1,800〜
Industry/Government

  • Includes everything in the free edition, plus
  • Advanced molecular and crystal structure editing
  • Automatic management of files and jobs through project mode
  • Calculations using MOPAC and CNDO/S (unlimited atoms)
  • Simplified calculations using GAMESS, NWChem, LAMMPS, Gromacs, Quantum ESPRESSO
  • GAFF & Dreiding force field assignment, AM1-BCC charge
  • Practical email support and training sessions (companies only)
  • Learn more

PROFESSIONAL Edition Premium

$1,200〜
Educational Institution
$3,600〜
Industry/Government

  • Includes everything in Economy/Student, plus
  • Building polymer, interface, and slab models
  • Job submission to remote systems
  • Basic calculations with GAMESS, NWChem, LAMMPS, Gromacs, Quantum ESPRESSO, OpenMX
  • Calculations using Gaussian, FDMNES, AkaiKKR
  • UFF & GAFF2 force field assignment, RESP charge
  • Learn more

PROFESSIONAL Edition Elite

$2,400〜
Educational Institution
$7,200〜
Industry/Government

  • Includes everything in Premium, plus
  • Sequential calculations across multiple structures/parameters
  • OPLS-AA assignment and auto-editing of force fields
  • Advanced calculations with Gaussian, LAMMPS, Gromacs, Quantum ESPRESSO
  • Calculations using VASP and Towhee
  • Machine learning-based force fields (VASP, Matlantis)
  • Learn more
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