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Free Online JPG to BMP Converter

Convert JPG to BMP online for free.

Drop JPG files here
or click anywhere in this box to choose files

Up to 50 MB per file. Sign up free to convert files up to 100 MB.

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

Frequently asked questions

How do I convert JPG to BMP?

Upload the JPG file and choose BMP as the output format. The conversion takes a few seconds. No account is required and the output carries no watermark. Batches download either one file at a time or as a single 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 produces a file that opens on systems without JPG support.

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.

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.

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Image guides and fixes

How to Compress WebP Images: Quality Settings and Best Practices WebP is already smaller than JPG and PNG, but you can compress it further. Here are the optimal quality settings and when to use lossy vs lossless WebP. Best Image Format for Email Attachments: JPG, PNG, or Something Else? Not every image format works in every email client. JPG is the safest bet for photos, PNG for screenshots. Here is when to use each and what to avoid. Exporting RAW for Print vs Web: TIFF, JPG, or PNG? Your RAW file is edited. Now you need to export it, but TIFF for print, JPG for web, PNG for graphics? Here's how to choose the right format and settings. AVIF vs WebP vs JPEG XL - Which Next-Gen Image Format Should You Use? AVIF, WebP, and JPEG XL all promise smaller files and better quality than JPEG. This guide compares them on compression, browser support, features, and real-world use cases.
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