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To download FITS Preview from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

FITS Preview

By CloudMakers, s. r. o.

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FITS Preview is a lightweight and fast viewer for images in FITS format (Flexible Image Transport System) introduced by NASA and HEASARC.

The viewer is based on CFITSIO library and supports all standard monochromatic and color FITS image formats. It shows both an image (zoomed and stretched automatically, but manual correction of black and white point is available), an image metadata and histogram. The viewer can flip, rotate, debayer image (automatically if offsets fields in header are set correctly) and export images to JPEG format.

What's New in Version 1.6

1. Fixed bug in debayering code.
2. "Flip automatically" option added (in View menu).
3. .fts extension added.


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Customer Reviews

FITS Preview Review

I am an amateur astronomer who is also a retired computer scientist. So I thought I’d heard about every possible file format by now - that is, until FITS.

The NSO, National Solar Observatories, had some online files that I wanted to see. I went through all the hoops and filally downloaded the ones I wanted. They came in as tar files, which arw easily unwraped, giving me a couple of tgz files, which I also undid. Now I’ve got my files, but they are all .fits - say what?

I looked around online and found a ton of Win solutions but had to go directly to the App store to find anything for my Apple iMac. I downloaded FITS Preview, aimed it at one of my files and voila - a beautiful image of the Sun. Very nice, and easy enough to use, once you finally get the fits files out of their cocoons.

FITS Preview
View in Mac App Store
  • $4.99
  • Category: Education
  • Updated:
  • Version: 1.6
  • Size: 2.8 MB
  • Language: English
  • Seller:

Compatibility: OS X 10.8 or later, 64-bit processor

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.