Convertidor de JPEG a BMP en línia

Convertiu el vostre fitxer JPEG al format BMP en 3 clics simples.

BMP⌄

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⚙ Configuració opcional

Resize

Color Filter

DPI

dpi

Crop (px)

JPEG vs BMP: Guia completa de formats

JPEG

Lossy

Compressió

BMP

None

JPEG

Not supported — transparent areas always render as solid white or the specified matte color

Transparència

BMP

Only in 32-bit BMP via BITMAPV4/V5HEADER alpha channel — inconsistently supported by applications

JPEG

Not supported

Animació

BMP

Not supported

JPEG

24-bit (8 bits per channel: RGB) — up to 16.7 million colors

Profunditat de color

BMP

1-bit monochrome to 32-bit RGBA — most common use is 24-bit (16.7 million colors)

JPEG

50 KB – 5 MB per image depending on resolution and quality setting

Mida del fitxer

BMP

3 MB – 25 MB per image — a 1920×1080 24-bit BMP is approximately 5.9 MB

JPEG

Universal — all browsers, all operating systems, all devices including IE6 and older smartphones

Suport del navegador

BMP

Technically supported by most browsers but virtually never used on the web due to enormous file sizes

JPEG

Photos, web images

Ideal per a

BMP

Legacy Windows apps

Casos d'ús comuns: JPEG → BMP

🖥️ Windows wallpaper format⚙️ Legacy Windows software🔧 Industrial machine input📟 Embedded display systems

⚠️BMP output will be 5–15× larger than the source JPG. Unless a legacy system specifically requires BMP, PNG provides the same lossless quality at a fraction of the file size.

Format

JPEG

Standardized in 1992 by the Joint Photographic Experts Group, JPEG became the internet's dominant image format through the 1990s. Its DCT compression made digital photography practical for early web a…

Punts forts

+Smallest file sizes for photographs (10:1 to 20:1 compression ratio)

+Universal compatibility across every device, software, and platform

+Embeds EXIF metadata (GPS, camera settings, date/time)

+Adjustable quality/size trade-off at save time

Limitacions

−Lossy — permanently discards image data with every save

−No transparency — backgrounds are always solid

−Visible block artifacts on sharp edges, text, and high-contrast areas

−Quality degrades with each re-save (generational quality loss)

Sharing photographs on social media, email, or blogsCamera images where file size matters more than pixel perfectionWeb page photos where page load speed is the priorityAny context requiring maximum cross-device and software compatibility

Format

BMP

BMP (Device-Independent Bitmap) was introduced by Microsoft with the Windows 3.0 SDK in 1990 as the native raster format for Windows. It stores pixel data with zero compression, ensuring perfect repro…

Punts forts

+Zero compression artifacts — the highest possible fidelity for raw storage

+Simple, well-documented format trivial to read/write programmatically

+Universal support across all Windows software and development tools

+Direct pixel data access with no decoding overhead

Limitacions

−Extremely large files — a 1080p image is ~6 MB vs ~300 KB as JPG

−No practical web use — impractically large for any internet delivery

−Limited support outside Windows ecosystem

−No meaningful advantages over PNG for any modern use case

Legacy Windows applications that exclusively require BMP formatAutomated Windows image processing pipelines as an intermediate formatSystem resource files (wallpaper, specific application bitmaps)When absolute raw pixel fidelity is needed and file size is irrelevant

Convertir JPEG a BMP

El BMP és el format de mapa de bits natiu de Windows que el SO utilitza per a fons de pantalla, icones i programari antic. Convertir JPG a BMP elimina tota la compressió.

Quan convertir JPEG a BMP

⚙️

Windows natiu

El BMP és el format a nivell de SO per a fons de pantalla i cursors personalitzats.

🎮

Desenvolupament de jocs retro

Els motors de jocs clàssics com RPG Maker requereixen BMP per a sprites i tilesets.

🔬

Imatge científica

El programari de laboratori i mèdic requereix BMP sense comprimir.

🛠️

Accés directe a píxels

L'estructura senzilla del BMP permet l'accés directe a la memòria.

JPEG vs BMP — Comparació de formats

Propietat	JPEG (input)	BMP (output)
Format type	Raster	Raster
Compression	Lossy	None
Transparency	No	No
Best used for	Photos, web images	Legacy Windows apps
File size	Small	Very Large

ℹ️ Important note

Els fitxers BMP poden ser 10–20× més grans que els JPG equivalents.

Com convertir JPEG a BMP?

Pengeu el vostre fitxer JPEG

Feu clic a "Trieu un fitxer" o arrossegueu la imatge JPEG.

Seleccioneu BMP com a format de sortida

Trieu "BMP" del menú desplegable.

Convertir el fitxer

Feu clic a "Converteix ara" per iniciar la conversió de JPEG a BMP.

Baixeu el fitxer BMP

Un cop finalitzada la conversió, baixeu el vostre fitxer BMP.

JPEG

Extensió del fitxer.jpeg
DescripcióJPEG is the most widely used lossy image compression format, ideal for photographs and complex images with many colors.
Programes associatsAdobe Photoshop, GIMP, Windows Photo Viewer, Preview (Mac)
Desenvolupat perJoint Photographic Experts Group
Tipus MIMEimage/jpeg

BMP

Extensió del fitxer.bmp
DescripcióBMP (Bitmap) stores uncompressed bitmap digital images independently of the display device. Large file sizes but no quality loss.
Programes associatsMicrosoft Paint, Adobe Photoshop, GIMP, MS Photo Editor
Desenvolupat perMicrosoft
Tipus MIMEimage/bmp