Online Image Converter to FITS

With this tool, quickly convert any image to the FITS format. Ideal for maintaining quality and compatibility.

Convert one or multiple images to any format you want.

Select or drag the image(s) to the field below.

Set the desired format in the “Output format” box and click “Convert.”

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    Convert your images to FITS (Flexible Image Transport System) for Astronomy and Science

    The FITS format (Flexible Image Transport System) is the recognized standard internationally by NASA, ESA, and the astronomical community for the transport, storage, and processing of scientific data. Convert images for FITS if you need image data with scientific metadata and numerical accuracy.

    Scientific Use and Characteristics of FITS

    • ✅ Stores data in multiple layers (tables and arrays) in addition to the visual image.
    • ✅ Robust support for scientific metadata in the ASCII header.
    • ✅ Used in telescopes and observatories around the world for raw data.