Free Online JPG to BMP Converter

Convert JPG to BMP online for free.

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JPG to BMP: decompressing to raw pixels

BMP stores raw uncompressed pixel data at full color depth. Converting from JPG decodes the DCT-compressed data into raw pixels and writes them directly into a BMP file with no compression. The result is typically 10-20× larger than the JPG source with zero visual improvement — the quality ceiling is set by the original JPG encoding. The BMP accurately represents every decoded pixel but cannot recover information the JPG codec discarded.

Convert JPG to BMP only for legacy software that requires uncompressed BMP input — older Windows applications, certain industrial imaging systems, and embedded hardware with BMP-only firmware. For any modern workflow, keep JPG or convert to PNG.

JPG vs BMP: Side-by-side

Technical comparison of the two formats — useful for deciding which to use, or for confirming what changes during conversion.

Property	JPG	BMP
Full name	JPEG (Joint Photographic Experts Group)	Bitmap
Year introduced	1992	1990
Developer / standard body	JPEG Committee	Microsoft
MIME type	image/jpeg	image/bmp
File extension	.jpg / .jpeg	.bmp
Compression	Lossy (DCT-based)	Uncompressed (typically)
Color / data depth	24-bit truecolor	1 to 32-bit
Max dimensions / size	65,535 × 65,535 px	32,767 × 32,767 px
Transparency	No	Yes
Animation	No	No
Standard / specification	ISO/IEC 10918	Microsoft Windows
Best for	Photos, web images, email attachments	Legacy Windows applications, raw pixel data

JPG to BMP FAQ

Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert JPG files to BMP.

How do I convert JPG to BMP?

Upload your JPG image to iFormat and click Convert — it's decoded and re-encoded to BMP in seconds. It's free, adds no watermark, and needs no account. Batch upload is supported, and results download individually or as a ZIP.

Can I convert JPG to BMP without losing quality?

BMP is an uncompressed Windows bitmap. Converting to a lossless target such as PNG, TIFF or BMP preserves every pixel exactly. Converting to a lossy one such as JPG or WebP re-encodes the image, and iFormat uses a high default quality so the difference is invisible at normal viewing size. For the sharpest result, always convert from the highest-quality source you have.

What is JPG?

JPG is a lossy raster format, typically used for photos and web images where small size matters. Converting it to BMP makes the file easier to open, share, or upload where JPG is not supported.

JPG vs BMP — which format should I use?

JPG is a lossy raster format best for photos and web images where small size matters. BMP is an uncompressed Windows bitmap best for raw pixel data with no compression. Use BMP when a website, form, or app requires it, or when you need an uncompressed, simple layout that old software can read.

How do I open JPG files?

On Windows: Photos, or any browser. On a Mac: Preview, or any browser. Universally supported — if a JPG will not open, the file is probably corrupt or misnamed.

Guides and Fixes for JPG to BMP Converter

Read image-format guides, transparency tips, compatibility fixes, and file-size advice related to JPG to BMP Converter.

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