FITS Converter

Convert FITS files online for free


Drop or upload your .FITS file
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How to convert your FITS file

  1. Click the "Select File" button above, and choose your FITS file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.

Convert FITS to another file type

The converter easily converts your FITS file to various formats - free and online. No Photoshop or extra software needed.

  • FITS to TIFF
  • FITS to JPG
  • FITS to CSV
  • FITS to PNG
  • FITS to RAW
  • FITS to ASCII
  • FITS to PDF
  • FITS to GIF
  • FITS to BMP
  • FITS to TIF
  • FITS to WEBP
  • FITS to ICO

Convert a file to FITS

The converter also works in reverse, so you can convert other Raster Image formats to FITS with high quality output.

  • RAW to FITS
  • PNG to FITS
  • AI to FITS
  • NEF to FITS
  • PSB to FITS
  • DNG to FITS
  • SVG to FITS
  • GIF to FITS
  • EPS to FITS
  • JPG to FITS
  • ARW to FITS
  • PDF to FITS

About FITS files

FITS, or Flexible Image Transport System (FITS on Wikipedia), is a file format primarily used in astronomy for storing and managing scientific data. While it is excellent for handling complex data with metadata, converting FITS files to more commonly used formats can be challenging.

FITS files can be converted to various formats such as JPEG, PNG, TIFF, and more. Software programs like DS9 and Astropy offer desktop solutions for conversion. However, these require a degree of technical knowledge and might not be user-friendly for everyone.

Important considerations when converting FITS files include preserving data integrity and ensuring that metadata is not lost. The process can be complex due to the file's scientific nature and the specialized software required.

Despite its usefulness in scientific fields, FITS files have drawbacks, such as large file sizes and compatibility issues outside specialized software. These challenges can make the FITS format difficult to manage for casual users.

That's why using Convert.Guru is highly recommended. Our platform simplifies the process, allowing you to drag-n-drop your FITS files for easy conversion to different formats. While FITS is valuable for specialized purposes, Convert.Guru ensures a user-friendly experience for converting your FITS files to more accessible formats, all without the headache of complex software.

Use Convert.Guru to open and convert your FITS file.

Users also converted FIT, FTS, NPY, ZIP, PAK, MOC, VTP, PWB, TIFF, JPG, CSV, PNG and RAW files.



The FITS Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our FITS converter.