Specific Purposes: mostly on programming
| altair | Declarative statistical visualization library for Python |
| argparse | command-line parsing module in the Python standard library |
| asana | asana task manager |
| astroblend | Combine artistic 3D models with computational astrophysics datasets and win the internet |
| astroML | Machine learning, statistics, and data mining for astronomy and astrophysics |
| astropy | python library for astronomy |
| astroquery | Functions and classes to access online data resources |
| astroVis | visulizing astronomical data cubes |
| avoplot | An extensible scientific plotting tool based on matplotlib |
| bokeh-notebook | Interactive Web Plotting with Bokeh in IPython notebook |
| celerite | Scalable 1D Gaussian Processes in C++, Python, and Julia |
| chainconsumer | Corner plots, LaTeX tables and plotting walks |
| contbin | Contour binning |
| corner | Make some beautiful corner plots of samples |
| cosmoPMC | Cosmology sampling with Population Monte Carlo |
| cosmoslik | Cosmology Sampler of LIKelihoods |
| cuba | a library for multidimensional numerical integration |
| daft | BEAUTIFULLY RENDERED PROBABILISTIC GRAPHICAL MODELS |
| DALI | Non-Gaussian Likelihood Approximations |
| dedalus | A FLEXIBLE FRAMEWORK FOR SPECTRALLY SOLVING DIFFERENTIAL EQUATIONS |
| DNest4 | Diffusive Nested Sampling |
| emcee | Affine Invariant Markov chain Monte Carlo Ensemble sampler |
| eob_ihes | EOB IHES |
| FATS | Feature Analysis for Time Series |
| FEniCS | computing platform for partial differential equations |
| Fluid | Turn Your Favorite Web Apps into Real Mac Apps |
| gala | Python package for Galactic astronomy and gravitational dynamics |
| galkin | A tool to handle the available data on the rotation curve of the Milky Way |
| GalPot | A stand-alone version of Dehnen’s GalaxyPotential code |
| galpy | Galactic Dynamics in python |
| gatspy | General tools for Astronomical Time Series in Python |
| GMM | Gaussian Mixture Modeling |
| GRTensorII | GRTensorII |
| gwframe | Manipulate gravitational waveforms—changing frames, and so on |
| gwpy | Package for analysing and characterising gravitational wave data in python |
| h5py | HDF5 for Python |
| HAD | Distributed AMR infrastructure for PDEs |
| ipywidgets | IPython widgets for the Jupyter Notebook |
| Jekyll | Transform your plain text into static websites and blogs |
| jrnl | Collect your thoughts and notes without leaving the command line |
| lalsuite | LALSuite Mirror |
| languagecheck | Improve the language of your paper before submission |
| lightning | API-based access to reproducible web visualizations |
| lisatools | LISA tools |
| MCcubed | Python Differential Evolution MCMC |
| mesa | The Mesa 3D Graphics Library |
| nbody | collection of nbody codes |
| nbstripout | strip output from Jupyter and IPython notebooks |
| NX01 | Pulsar-timing array analysis code |
| O2scl | object-oriented scientific computing library |
| odes | The ODES scikit for ordinary differential and algebraic equations, an extension to scipy |
| odespy | Odespy Interface to ODE Solvers |
| pandoc | a universal document converter |
| piccard | pulsar timing data analysis package |
| PINT | PINT is not TEMPO3 – New software for high-precision pulsar timing |
| precession | precession |
| PSPLINE | Princeton Spline and Hermite Cubic Interpolation Routines |
| PsrPopPy | Python implementation of PSRPOP, designed to be run from the command line or from Python scripts/interpreter |
| pwkit | miscellaneous Python for science and astronomy |
| pycbc | Analyze gravitational-wave data, find signals, and study their parameters |
| pycodestyle | Python style guide checker |
| pydde | Python/C DDE solver |
| pydelay | delay differential equations (DDEs) |
| pyMan | Introduction to Python for Science |
| pynbody | N-body and hydro analysis tools for python 2 and 3 |
| re | Regular Expression |
| rebound | An open-source multi-purpose N-body code |
| reboundx | A library for adding additional forces to the REBOUND N-body integration package |
| RGW | Goodman-Weare Affine-Invariant Sampling in R-language |
| reproject | Image reprojection |
| RGTC | Riemannian Geometry & Tensor Calculus @ Mathematica |
| RNS | Rapidly rotating NSs |
| ROMSpline | compressing and interpolating 1d data using reduced-order modeling and statistical learning methods |
| sage | Mirror of the Sage source tree |
| scri | manipulating time-dependent functions of spin-weighted spherical harmonics |
| simulationtools | SimulationTools |
| slice_posterior | Slices and interpolate a LIGO CBC-PE posterior file |
| synthlisa | Synthetic LISA: a noise and signal simulator for LISA-like gravitational-wave observatories |
| tempo | pulsar timing data analysis |
| tempo2 | TEMPO2 pulsar timing package |
| tensorflow | An open-source software library for Machine Intelligence |
| threading | Manage concurrent threads |
| theano | a Python library to define, optimize, and efficiently evaluate mathematical expressions involving multi-dimensional arrays |
| three.js | JavaScript 3D library |
| uncertainties | uncertainties package |
| VBBinaryLensing | forward modelling of gravitational microlensing events |
| vim fugitive | VIM fugitive |
| VisIt | data visualization |
| vpython | Simple 3D Programming Using VPython |
| WebPlotDigitizer | HTML5 based online tool to extract numerical data from plot images |
| xAct | Efficient tensor computer algebra for the Wolfram Language |
| xAct-contrib | Community contributions to xAct |
| zotfile | Zotero plugin to manage your attachments |
| zsh | Zsh |