JPG to BMP Converter
Convert JPG to BMP free — no upload, no signup
To convert JPG to BMP, drop your JPG images into the box below, click Convert, then Download. Fylo does the work inside your browser, so nothing is uploaded and there's no signup or watermark. BMP is uncompressed, so a 12-megapixel photo becomes about 36 MB.
Drop images here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
No settings needed — BMP output keeps every pixel. Options are under Advanced.
Advanced
Leave empty to keep the original size.
How to convert JPG to BMP
Add your JPG files
Drag and drop JPG files into the box, tap to choose them, or paste with Ctrl+V. You can add many at once.
Pick a background
BMP has no transparency; transparent areas use white unless you choose another colour under Advanced.
Convert and download
Click Convert, then download each BMP or get them all in one ZIP.
Why convert JPG to BMP?
BMP is the native bitmap format of Windows. Some legacy programs, embedded displays, label printers, machine-vision tools and older games only read uncompressed bitmaps, and programmers often want BMP because it's trivial to parse pixel by pixel.
Does converting JPG to BMP affect quality or size?
The bitmap is pixel-exact to the decoded JPG, but the file balloons because BMP stores raw 24-bit colour: width × height × 3 bytes, plus a little row padding. A 4000 × 3000 photo is roughly 36 MB. There's no quality gain — just a format your target software can read.
What's the difference between JPG and BMP?
JPG is the world's most common photo format. It uses lossy compression to keep photos small, but it has no transparency and loses a little detail every time it's re-saved.
BMP is Microsoft's uncompressed bitmap format. It's simple and lossless but huge: every pixel is stored raw, so a 12-megapixel photo takes about 36 MB.
Learn more: JPG format guide · BMP format guide
| Property | JPG | BMP |
|---|---|---|
| Compression | Lossy (DCT) | Usually none (optional RLE) |
| Transparency | No | Rarely (32-bit only) |
| Animation | No | No |
| Colour depth | 24-bit (16.7 million colours) | 1 to 32-bit |
| Typical size, 12 MP photo | ≈ 2–4 MB | ≈ 36 MB |
| Support | Universal — every browser, OS, camera and app | Windows, most editors, all major browsers |
| Best for | Photos, social media, email, printing | Legacy Windows software, embedded displays |
| Introduced | 1992 | 1985 |
Frequently asked questions
Why is the BMP file so large?
BMP normally has no compression. Each pixel takes 3 bytes, so file size is simply width × height × 3. That's why BMP is rarely used for sharing.
Which type of BMP does Fylo create?
A standard 24-bit Windows bitmap with a BITMAPINFOHEADER, which every version of Windows, Paint and virtually every image library can open.
Are my JPG files uploaded to a server?
No. Fylo converts JPG to BMP entirely inside your browser using a background Web Worker, so your files never leave your device. That's also why it's fast — there's no upload or download wait.
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