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Bulk FITS to RAS Converter Online — Free HD Quality

Drag and drop your multiple FITS files into this 100% free online FITS to RAS converter (.fits to .ras), and click the Convert button to bulk convert them to RAS format in HD quality. Use the quality slider to fine-tune your RAS output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original FITS files are removed from our servers right after. Also see:Transform GIF to PPM.

Drop your FITS files here to convert to RAS, or click to browse

Converts .fits to RAS (.ras) in HD quality — bulk, free, no signup

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FITS vs RAS — File Format Comparison

See how FITS and RAS compare across file extension, MIME type, compression, and feature support. Related:Transform FITS to XBM.

Feature FITS RAS
File Extension .fits .ras
MIME Type image/fits image/x-sun-raster
Compression Type Lossless Lossless
Transparency Support No No
Animation Support No No
Metadata Support Yes Yes

What Is FITS Format?

Flexible Image Transport System for astronomical data. See also:Online FITS to PDF converter tool.

  • Compression: Lossless
  • Transparency: Not supported
  • Animation: Not supported

What Is RAS Format?

Sun Raster format for Unix systems.

  • Compression: Lossless
  • Transparency: Not supported
  • Animation: Not supported