BMP vs H264 — Differences, File Size & When to Use Each

BMP vs H264

Ein detaillierter Vergleich von BMP Image und H.264 Raw Stream — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.

H264 → BMP umwandeln

BMP

BMP Image

Raster & Vector Images

BMP is an uncompressed raster image format native to Windows. Files are large but preserve exact pixel data with no compression artifacts. Rarely used on the web due to file size.

Über BMP-Dateien

H264

H.264 Raw Stream

Video Files

H.264 raw stream is an elementary bitstream containing only the video data encoded with the H.264/AVC codec without any container. It is commonly used as an intermediate format in video processing pipelines and for hardware encoder output.

Über H264-Dateien

Vorteilsvergleich

BMP Vorteile

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.

H264 Vorteile

Universal hardware decode on every device since ~2010.
40-50% smaller than MPEG-2 at equal quality.
Mature ecosystem with dozens of encoders (x264 is the open-source gold standard).
Every browser, phone, TV, and car infotainment supports H.264.
Supports everything from 144p vertical phone video to 8K HDR masters.

Einschränkungen

BMP Einschränkungen

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.

H264 Einschränkungen

Patent-encumbered — encoding royalties apply for commercial use.
30-50% larger than H.265/AV1 at equivalent quality.
Raw .h264 bytestreams have no timecode — containers (MP4/MKV) add that.
High profiles decode slowly on pre-2010 hardware.

Technische Spezifikationen

Spezifikation	BMP	H264
MIME type	image/bmp	video/h264
Extensions	.bmp, .dib	.h264, .264, .avc (raw bytestream)
Compression	None (typical); RLE 4/8 bit (rare)	—
Color depths	1, 4, 8, 16, 24, 32 bits per pixel	—
Byte order	Little-endian	—
Standard	—	ITU-T Rec. H.264 / ISO/IEC 14496-10 (AVC)
Typical containers	—	MP4, MKV, MOV, TS, FLV
Profiles	—	Baseline, Main, High, High 10, High 4:2:2, High 4:4:4

Typische Dateigrößen

BMP

Small icon (32×32) 4 KB
Screenshot (1920×1080) ~6 MB
4K image (3840×2160) ~25 MB
Scanned A4 at 300 dpi ~25 MB

H264

1080p 30fps @ 5 Mbps (1 min) ~37 MB
4K 60fps @ 35 Mbps (1 min) ~260 MB
HD streaming (1 hour, 6 Mbps) ~2.7 GB

Bereit zum Umwandeln?

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H264 zu BMP umwandeln

Häufig gestellte Fragen

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.

BMP (Bitmap) is a raster image formato developed by Microsoft para Windows. It stores images com no compressão by default, resulting in large tamanho do arquivos mas pixel-perfect quality. It has been part of Windows since version 1.0.

BMP files open in Windows Paint, Photos, macOS Preview, GIMP, Photoshop, and virtually any image viewer. All Windows applications support BMP natively.

BMP arquivos abrir in Windows Paint, Photos, macOS Preview, GIMP, Photoshop, e virtually any image viewer. All Windows aplicativos support BMP natively.

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.

PNG is melhor que BMP in almost every scenario since it fornece sem perdas compressão (smaller files), transparência support, e wider cross-platform use. BMP is mainly relevant para legacy Windows aplicativos.