The modular galaxy image simulation toolkit. Documentation:
☆262Updated this week
Alternatives and similar repositories for GalSim
Users that are interested in GalSim are comparing it to the libraries listed below
Sorting:
- JAX port of GalSim, for parallelized, GPU accelerated, and differentiable galaxy image simulations.☆33Updated this week
- ☆14Updated this week
- Gaussian mixtures and image processing implemented in python☆45Mar 24, 2025Updated 11 months ago
- PSFs In the Full FOV. A software package for modeling the point-spread function (PSF) across the full field of view (FOV). Documentatio…☆66Jan 30, 2026Updated 3 weeks ago
- Code for efficiently computing 2-point and 3-point correlation functions. For documentation, go to☆109Updated this week
- Weak lensing fast simulations and analysis of blended objects.☆14Oct 27, 2025Updated 4 months ago
- Shape Measurement Pipeline☆17Feb 13, 2026Updated 2 weeks ago
- simple simulations for testing weak lensing shear measurement☆12Oct 31, 2025Updated 3 months ago
- Library for meta-detection, combining detection and metacalibration☆13Jan 23, 2026Updated last month
- Tool to generate fake galaxy catalogs with realistic positions, morphologies and fluxes from the far-ultraviolet to the far-infrared.☆21Feb 2, 2024Updated 2 years ago
- Astronomical source modeling in jax☆26Updated this week
- GalSim based Rubin Observatory image simulation package☆41Feb 16, 2026Updated last week
- JAX port of lenstronomy, for parallelized, GPU accelerated, and differentiable gravitational lensing and image simulations.☆20Feb 13, 2026Updated 2 weeks ago
- DESC Core Cosmology Library: cosmology routines with validated numerical accuracy☆157Updated this week
- A TensorFlow reimplementation of GalSim☆10Mar 8, 2022Updated 3 years ago
- Differentiable Stellar Population Synthesis☆32Jan 19, 2026Updated last month
- Configuration Space Covariances for Projected Galaxy 2-Point Statistics☆14Aug 13, 2025Updated 6 months ago
- SourceXtractor++, the next generation SExtractor☆87Feb 20, 2026Updated last week
- imcascade : Fitting astronomical images with a "cascade" of Gaussians☆16Sep 3, 2023Updated 2 years ago
- Python package for studying large scale structure, cosmology, and galaxy evolution using N-body simulations and halo models☆117Jan 26, 2026Updated last month
- hyperspectral galaxy modeling and deblending☆57Aug 14, 2024Updated last year
- Interactive notebooks for graduate course in galaxies.☆16Jun 14, 2024Updated last year
- SkyPy: A package for modelling the Universe.☆128Jan 11, 2026Updated last month
- Galaxy images labelled by morphology (shape). Aimed at ML development and teaching.☆40Jun 19, 2023Updated 2 years ago
- A Python library for performing galaxy cluster mass reconstruction from weak lensing observables☆29Dec 17, 2025Updated 2 months ago
- Library of models, datasets, and utilities to build generative models for astronomical images.☆27Jul 27, 2021Updated 4 years ago
- A fast, flexible, automated, and differentiable astronomical image 2D forward modelling tool for precise parallel multi-wavelength photom…☆102Updated this week
- Grizli: The "Grism redshift and line" analysis software☆85Feb 16, 2026Updated last week
- ☆11Feb 20, 2026Updated last week
- tutorials on shape measurement☆10Jan 5, 2022Updated 4 years ago
- 🌌 hugs: A low-surface-brightness galaxy detection pipeline☆11Aug 6, 2020Updated 5 years ago
- python and C codes to interpolate and reconstruct psfex images☆21Jan 21, 2020Updated 6 years ago
- Home of the Semi-Analytic Galaxy Evolution (SAGE) galaxy formation model☆22Nov 4, 2025Updated 3 months ago
- Multi-purpose lens modeling software package☆212Feb 14, 2026Updated 2 weeks ago
- A fast, accurate estimator for small shear distortion.☆15Oct 10, 2024Updated last year
- Learning the LSST software Stack, by writing jupyter notebook tutorials.☆46Jan 13, 2023Updated 3 years ago
- The Tractor: measuring astronomical sources via probabilistic inference☆90Updated this week
- Multi-object/band source modelling/galaxy fitting code☆11Nov 6, 2024Updated last year
- Generate PSF super-tabulated models☆41Mar 27, 2025Updated 11 months ago