BMP vs RAW
A detailed comparison of BMP Image and Generic RAW Image — file size, quality, compatibility, and which format to choose for your workflow.
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Choosing between BMP (BMP Image, image/bmp) and RAW (Generic RAW Image, image/x-raw) depends on your target workflow, compression efficiency, and device support. Below is our side-by-side technical benchmark and instant bidirectional converter.
BMP vs RAW at a glance
BMP vs RAW| Dimension | .BMP | .RAW |
|---|---|---|
| Format Name | BMP Image (.bmp) | Generic RAW Image (.raw) |
| Format Family | Raster & Vector Images | Raster & Vector Images |
| Primary MIME | image/bmp | image/x-raw |
| Developer / Year | Microsoft & IBM (OS/2 + Windows 1.0) (1985) | Industry generic (various) (1991) |
| Pipeline Role | Read & Write | Source Input |
When should you use BMP vs RAW?
.BMP Use when…
Use BMP (BMP Image) when your pipeline requires native image/bmp compatibility, predictable rendering, or specialized Raster & Vector Images editing support.
.RAW Use when…
Use RAW (Generic RAW Image) when you need image/x-raw delivery, cross-platform Raster & Vector Images distribution, or streamlined storage.
Technical Specifications
| Specification | .BMP | .RAW |
|---|---|---|
| MIME type | image/bmp | — |
| Extensions | .bmp, .dib | — |
| Compression | None (typical); RLE 4/8 bit (rare) | — |
| Color depths | 1, 4, 8, 16, 24, 32 bits per pixel | — |
| Byte order | Little-endian | — |
| MIME types | — | image/x-* (varies by vendor) |
| Common extensions | — | .cr2, .cr3, .nef, .nrw, .arw, .raf, .orf, .rw2, .dng, .pef, .x3f, .raw |
| Bit depth | — | 12-16 bits per pixel |
| Typical containers | — | TIFF/EP variants with vendor makernotes |
| Universal exchange format | — | DNG (Adobe) |
Strengths Comparison
.BMP Strengths
- Dead-simple format — trivially easy to read and write.
- Lossless and uncompressed — perfect bit-exact pixel storage.
- Universally supported in Windows applications since 1985.
- Supports 1, 4, 8, 16, 24, and 32-bit color depths.
.RAW Strengths
- Every bit of sensor data preserved for post-processing latitude.
- Higher bit depth (12-16 bits) than JPEG (8-bit) — smoother gradients.
- Non-destructive editing in raw processors.
- Rich metadata (EXIF, makernotes, camera settings).
Limitations
.BMP — Limitations
- Enormous file sizes — no meaningful compression in typical use.
- Not a web format — browsers support it but nobody serves BMPs over HTTP.
- No metadata support (no EXIF, no ICC profile in practice).
- Multiple header versions mean "a BMP" is ambiguous — parsers must handle several variants.
.RAW — Limitations
- Proprietary per brand — Canon CR2 will not open in a pure-Canon-free processor.
- Huge files compared to JPEG.
- Requires dedicated software (Lightroom, Capture One, Darktable, etc.).
- No universal standard — DNG aims to solve this but adoption is partial.
Technical deep dive: BMP vs RAW
Both BMP and RAW serve distinct roles in modern digital pipelines. With KaijuConverter you can transcode between .bmp and .raw in seconds while preserving metadata and structural fidelity.
Frequently Asked Questions
BMP (BMP Image) uses MIME type image/bmp in the Raster & Vector Images family, whereas RAW (Generic RAW Image) uses image/x-raw in the Raster & Vector Images family. Each optimizes for different trade-offs in file size, fidelity, and software compatibility.
Yes. KaijuConverter uses tuned encoding profiles to preserve maximum visual, audio, or document fidelity when converting between BMP and RAW.
BMP (Bitmap) is a raster image format developed by Microsoft for Windows. It stores images with no compression by default, resulting in large file sizes but pixel-perfect quality. It has been part of Windows since version 1.0.
RAW (Generic RAW Image) is an image format used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family and designed around a specific trade-off between file size, visual fidelity, and feature support (transparency, colour depth, compression type). Photographers, web designers, and content creators choose RAW when its particular strengths match the publishing target.
BMP files open in Windows Paint, Photos, macOS Preview, GIMP, Photoshop, and virtually any image viewer. All Windows applications support BMP natively.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) open RAW natively. On mobile, iOS Photos and Google Photos display RAW in the gallery when supported by the OS. If the format is rare or new, convert to JPG or PNG first — both are universally readable — using our RAW to JPG or RAW to PNG converter.
PNG is better than BMP in almost every scenario since it provides lossless compression (smaller files), transparency support, and wider cross-platform use. BMP is mainly relevant for legacy Windows applications.
Yes. Every .bmp file uploaded to KaijuConverter is transferred over TLS 1.3, processed in an isolated container with SHA-256 verification, and automatically deleted within 30–60 minutes (or immediately with 1 click).
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