BMP .bmp
A bitmap image format often stored without compression. Useful for older software.
BMP file format guideBMP to FITS converter
Convert BMP (.bmp) to FITS for free. Choose files, review the available settings and download your results. No account needed.
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Drag files here or choose them from your device.
FITS .fits
Flexible Image Transport System stores scientific arrays and metadata, especially in astronomy. FITS can hold more than a single ordinary display image.
Only supported image planes are decoded. Do not use a visual export as a preservation copy of scientific arrays, units, or headers.
FITS file format guideHow to convert BMP to FITS
- Select BMP files from your device or drag them into the converter.
- Check the FITS output. Open conversion settings if you want to make adjustments.
- Convert, compare the original and result, then download your files.
Quality, compatibility and file limits
Choose dimensions and image quality before converting. Still-image exports keep one frame. Unedited GIF, WebP, AVIF, JPEG XL and MNG conversions can retain animation. Animated edits use a GIF intermediate with a limited color palette. Canvas editing uses browser display precision and does not preserve original EXIF, HDR, or scientific image data.
Processing uses your device when possible and our servers when required. Browser files are limited to 256 MB each; server conversions to 64 MB; browser spreadsheets to 32 MB. Previews show supported content and do not guarantee identical rendering in every application.