lenstronomy

The premium Open Source alternative to Gravlens

🎯 Best for:Researchers analyzing strong gravitational lensing in astronomical images.
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What is lenstronomy?

Replaces custom lensing scripts with a comprehensive framework for modeling galaxy-scale and cluster-scale lenses. It integrates multiple profiles and source reconstruction techniques.

Tech Stack
PythonPhysics & Astronomy

Why lenstronomy?

  • Multi-purpose
  • Well-documented
  • Modular design

Limitations

  • Computationally intensive
  • Requires lensing knowledge
  • Python overhead
2/14/2026
Last Update
113
Forks
30
Issues
BSD-3-Clause
License
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Competitor Cost
-$1,440
/ year (est. based on Gravlens)
Self-Hosted
$0
/ year
Team Size10 Users
150+
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