GDL - GNU Data Language

Astronomy Library for C++

a Stellar Dynamics Toolbox (Not Everybody Must Observe)

A full featured 100% Java library for reading and writing FITS files

OpenGL-based FITS image viewer

A native Swift library to read and write FITS files

FITS File interaction written in Visual Studio C# .Net. JPFITS is not based on any other implementations and is written from the ground-up, consistent with the FITS standard, designed to interact with fits files as object-oriented structures. See the github Wiki link below for more info.

A modern C++ API on top of CFitsIO

A native C# dotnet core implenetation to read and write astronomical .FITS files following newest specifications

rustronomy-fits: a rust library for reading and writing fits files

a Rust implementation of the C/C++ FITSWebQL

Miscellaneous Python functions.

FITS image interaction, world coordinate solving, point source extraction, photometry, etc. See the github Wiki link below for more info. If you require CCDLAB for UVIT, please ensure you have the UVIT Calibration Database which you can find at the CCDLAB Wiki link below.

Astronomy FITS Viewer & Analysis Tool in the browser

A native iOS library to compute vector / image data of FITS files

Command line tool to create FITS images from shots taken with the Raspberry Pi Camera v2.

Using plotly.dash look into table data based on the FITS file format in astronomy

Inspect and mark your FITS images quickly.

A simple commad line tool to read FITS files

a high-performance FORTRAN & C (replaced Julia (replaced Fortran 2018)) FITSWEBQL SE (Supercomputer Edition)