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Convert any picture to FITS format, edit and optimize pictures online and free.

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Flexible Image Transport System (.fits)

Flexible Image Transport System, abbreviated FITS, is an open standard designed for scientific (especially astronomical) data acquisition. FITS format is the most used digital file format in astronomy.

More About FITS

How to convert to FITS?

1Upload File

Choose any file from your computer, or drag & drop it onto this page.

2Select Tools

Use any available convert tools on the preview page, and click Convert.

3Download Your FITS

Once the convert is complete, you can download the final FITS file.

Convert to FITS
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