BMP vs PCX
A detailed comparison of BMP Image and PCX Image — file size, quality, compatibility, and which format to choose for your workflow.
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GPS Coordinates (37.1773° N, 3.5986° W): Stripped (Zero Location Leak)
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Device Serial & Lens ID: Stripped (EXIF / IPTC / XMP Clean)
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Chroma Subsampling: 4:4:4 High Fidelity (High-fidelity algorithmic conversion)
Choosing between BMP (BMP Image, image/bmp) and PCX (PCX Image, image/x-pcx) depends on your target workflow, compression efficiency, and device support. Below is our side-by-side technical benchmark and instant bidirectional converter.
BMP vs PCX at a glance
BMP vs PCX| Dimension | .BMP | .PCX |
|---|---|---|
| Format Name | BMP Image (.bmp) | PCX Image (.pcx) |
| Format Family | Raster & Vector Images | Raster & Vector Images |
| Primary MIME | image/bmp | image/x-pcx |
| Developer / Year | Microsoft & IBM (OS/2 + Windows 1.0) (1985) | ZSoft Corporation (1985) |
| Pipeline Role | Read & Write | Read & Write |
When should you use BMP vs PCX?
.BMP Use when…
Use BMP (BMP Image) when your pipeline requires native image/bmp compatibility, predictable rendering, or specialized Raster & Vector Images editing support.
.PCX Use when…
Use PCX (PCX Image) when you need image/x-pcx delivery, cross-platform Raster & Vector Images distribution, or streamlined storage.
Technical Specifications
| Specification | .BMP | .PCX |
|---|---|---|
| MIME type | image/bmp | image/x-pcx |
| Extensions | .bmp, .dib | — |
| Compression | None (typical); RLE 4/8 bit (rare) | Run-Length Encoding (RLE) |
| Color depths | 1, 4, 8, 16, 24, 32 bits per pixel | — |
| Byte order | Little-endian | — |
| Extension | — | .pcx |
| Header | — | 128 bytes fixed |
| Creator | — | ZSoft Corporation (1985) |
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.
.PCX Strengths
- Simple format — easy to parse in any language.
- RLE compression keeps flat-color images compact.
- Historic archive format for 1985-1995 PC art.
- Stable since 1985 with no breaking changes.
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.
.PCX — Limitations
- Legacy — no new content created as PCX in 2026.
- Inefficient for photographs (RLE is wrong algorithm).
- Limited to 24-bit color depth.
- Web browsers do not display PCX.
Technical deep dive: BMP vs PCX
Both BMP and PCX serve distinct roles in modern digital pipelines. With KaijuConverter you can transcode between .bmp and .pcx 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 PCX (PCX Image) uses image/x-pcx 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 PCX.
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.
PCX (PCX 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 PCX 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 PCX natively. On mobile, iOS Photos and Google Photos display PCX 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 PCX to JPG or PCX 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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