Bulk FITS to BMP Converter Online — Free HD Quality

Drag and drop your multiple FITS files into this free online FITS to BMP converter (.fits to .bmp), and click the Convert button to bulk convert them to BMP format in HD quality. Use the quality slider to fine-tune your BMP output, then download your converted files one by one or as a single ZIP — your original FITS files are removed from our servers right after.

To:
85%

Drop images here or click to browse

PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more

Max 100MB per file

FITS vs BMP — File Format Comparison

Feature FITS BMP
File Extension .fits .bmp
MIME Type image/fits image/bmp
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.

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

What Is BMP Format?

Windows Bitmap format, uncompressed raster images.

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