FileHint
JAEN

.bmp

Low risk

Windows Bitmap

The uncompressed bitmap format that originated on Windows. Simple to parse and fast to render, but produces huge files.

MIME types

  • image/bmp
  • image/x-bmp

Category

image

Aliases

.dib

What opens this file

  • Paint
  • Preview
  • GIMP
  • Photoshop

How to open by OS

Windows

  • Paint and Photos.

Mac

  • Preview.

Linux

  • GIMP, Eye of GNOME.

Ios

  • Photos and Files.

Android

  • Gallery.

Safety notes

  • Historical CVEs have hit BMP parsers with buffer-overflow issues — not common today, but worth noting.

Common mistakes

  • Serving BMP on the web wastes bandwidth. Convert to PNG or WebP for delivery.
  • Scanner and capture apps often save BMP by default, silently hoarding huge files.

Related extensions

References