Convert to FITS

Convert compatible files to FITS directly in your browser.

  • No uploads Files stay on your device
  • Batch processing Handle multiple files at once
  • 100% private No sign-up, no tracking

Drop files or folders here

You can also drag files into this area

Supported input formats

  • 3DS
  • 3MF
  • AVIF
  • BMP
  • CUR
  • DAE
  • DCM
  • DDS
  • DICOM
  • EPS
  • EXR
  • FF
  • +37 more

We support 49 formats. All conversion happens in your browser.

View all formats →

How to convert to FITS

  1. Add your files (e.g. 3DS, 3MF, AVIF)
  2. Adjust output settings (optional)
  3. Click \"Convert\"
  4. Download your converted files

About FITS

FITS is astronomy's data standard since 1981: n-dimensional arrays plus keyword headers recording exactly how the telescope saw the sky. Learn when to use it and what to choose instead.

Learn more about FITS →