FITS Converter
Get reaConverter, our fast and easy FITS image converter software. It will help you to convert multiple .fits files in one go.


How to Convert .fits Images in Bulk
1. Install reaConverter
2. Select FITS Files

3. Start Conversion

Convert FITS on your PC
For quick and effortless FITS file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
Do more with your images
Converting FITS images for use in a workflow? Touch up, transform, apply editing and effects to your images during conversion.
Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

User Reviews
Average User Rating:Last updated on March 28, 2025






FITS images: Frequently Asked Questions
What are FITS files?
FITS (Flexible Image Transport System) is a standard file format used in astronomy to store and share scientific data and images. It is designed to be flexible and extensible, allowing for the storage of various types of data and metadata. FITS files typically contain both image data and header information describing the properties of the data, such as its dimensions, pixel size, and exposure time. The format has been widely adopted by astronomers and is supported by many software tools and libraries.
Can reaConverter open FITS files?
reaConverter fully supports the FITS image format – open, edit, and export FITS files to any other popular file format with ease.
How do I change FITS to another format?
reaConverter is a user-friendly tool for converting FITS files. Once installed on your computer, it allows you to convert all your .fits files at once with just a few clicks. You can even convert fits images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert FITS online?
If you only want to convert a few FITS images, you are welcome to try our free online FITS converter.
How can I turn FITS files on my computer to another format?
The best way to convert FITS images on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from FITS.
How can I automate FITS files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert FITS files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line fits converter.
What else can I do with reaConverter?
Convert PDF filesWatermark photosChange format settingsChange DPIConvert GIS files
What formats can I convert a FITS file to?
What types of files can I convert to FITS format?
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