mesa

The premium Open Source alternative to STAREVOL

🎯 Best for:Theorists modeling the internal structure and evolution of stars.
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0.2k
Stars
LGPL-3.0License

What is mesa?

Replaces closed-source stellar evolution codes with a modular Fortran-based framework. It supports wide-ranging physical conditions and coupled nuclear reaction networks.

Tech Stack
FortranPhysics & Astronomy

Why mesa?

  • Modular physics
  • Large community
  • High fidelity

Limitations

  • Fortran-based
  • Long compile times
  • Complex configuration
3/2/2026
Last Update
61
Forks
122
Issues
LGPL-3.0
License
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Competitor Cost
-$1,440
/ year (est. based on STAREVOL)
Self-Hosted
$0
/ year
Team Size10 Users
150+
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