What is a .BMP file?
BMP is an uncompressed Windows bitmap image format - large but simple.
- Did you know
- BMP shipped with Windows 1.0 in 1985, making it one of the oldest image formats still in use.
- A standard BMP stores pixels uncompressed and, oddly, from the bottom row upward, a quirk that still trips up programmers reading the format.
- Because it carries raw pixel data with almost no compression, BMP files are large but trivially simple for any program to read or write.
- On the web a .BMP file is served with the MIME type
image/bmp. - Analyser spots a .BMP file by its signature bytes
42 4D- ASCII for "BM".
- What Analyser shows you
- View EXIF, GPS, camera settings, histograms, dominant colours, OCR text, and AI-generation markers in JPG, PNG, HEIC, WebP, GIF, BMP, TIFF, AVIF and JPEG XL images. Detects computational-photo wrappers (Apple Live Photo, Google and Samsung Motion Photo, Ultra HDR gain maps), opens THM movie-thumbnail files, and extracts every embedded image from multi-image files - all sizes in an ICO, both halves of an MPO stereo pair, and every page of a multi-page TIFF.
- Open a .BMP file
- Drag a .BMP file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.