FITS File Type

- The quick facts

What are FITS files and how to open them

Are you having problems opening a FITS file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a FITS file?

A .FITS file is a Flexible Image Transport System bitmap file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open FITS files

We have identified one FITS opener that is compatible with this specific type of FITS file.

Programs that open Flexible Image Transport System bitmap files

Last updated: December 22, 2021

Suggest another file format using extension FITS

While we know of one file format using the .FITS file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .FITS file.

Various apps that use files with this extension

These apps are known to open certain types of FITS files. Remember, different programs may use FITS files for different purposes, so you may need to try out a few of them to be able to open your specific file.

GIMPGIMPUser submitted
ImageMagickImageMagickUser submitted
MysticThumbsMysticThumbsUser submitted
MaxIm DLMaxIm DLUser submitted
ThumbsPlusThumbsPlusUser submitted
CCDStackCCDStackUser submitted
The ESO/ESA/NASA FITS LiberatorThe ESO/ESA/NASA FITS LiberatorUser submitted
3D Photo Browser3D Photo BrowserUser submitted
3DBrowser3DBrowserUser submitted
Techsoft PixEditTechsoft PixEditUser submitted