FITS Liberator is described as 'GUI image processing software has meant that it is even easier and faster to create color images using raw observations from a range of telescopes' and is an app. There are nine alternatives to FITS Liberator for a variety of platforms, including Windows, Linux, Mac, Web-based and Flathub apps. The best FITS Liberator alternative is Siril, which is both free and Open Source. Other great apps like FITS Liberator are DeepSkyStacker, AvisFV, SAOImageDS9 and Regim.
Siril is an astronomical image processing tool, able to convert, pre-process images, help aligning them automatically or manually, stack them and enhance final images.
Siril is the most popular Windows, Mac & Linux alternative to FITS Liberator.
Siril is the most popular Open Source & free alternative to FITS Liberator.
DeepSkyStacker is a freeware for astrophotographers that simplifies all the pre-processing steps of deep sky pictures.
AvisFV is a free FITS viewer for Windows 11, 10, 8, 7 (compatible also with most Linux and Mac if WINE is installed).
SAOImageDS9 is an astronomical imaging and data visualization application. DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps.
Regim makes some processing steps that are unique to astronomical images a bit easier. These steps are calibration (dark and flat), deblooming, registration, combination, color calibration, gradient removal and some more.
PixInsight is an advanced image processing platform specialized in astrophotography and other technical imaging fields, constantly pushing the boundaries of astronomical image processing with the most powerful toolset available.
PixInsight is the most popular commercial alternative to FITS Liberator.
The Astro App is a tool for exploring the night sky and tracking celestial events. It's primarily targeted for amateur astrophotographers.
Astro App is the most popular Web-based alternative to FITS Liberator.
Fitswork is a windows image processing program, mainly designed for astronomic purposes. It contains batch processing, histogram functions, many filters, etc. Fitswork works entirely in floating-point arithmetic.
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