Convert JPG to BMP — Uncompressed Bitmaps
Convert JPG to BMP online for an uncompressed bitmap that older apps can read. No software to install. Preview one free or batch-convert with Premium.
Drop your JPG file or click to browse
Why convert JPG to BMP?
- BMP is lossless, so the converted image loses no further detail when you edit and save it again.
- BMP is made for older Windows programs, embedded devices and tools that need raw pixels.
What to expect when converting JPG to BMP
- Converting can’t bring back detail that JPG compression already removed: the BMP is an exact copy of the image as it is, usually in a bigger file.
- Your original JPG file isn’t changed: you download a new BMP copy.
JPG vs BMP
| 功能 | JPG | BMP |
|---|---|---|
| 全名 | JPEG (Joint Photographic Experts Group) | Windows Bitmap |
| Origin | Standardised in 1992 | Created by Microsoft for Windows |
| 压缩 | Lossy, adjustable quality | Uncompressed |
| Transparency | 否 | No (in the 24-bit BMPs most apps read) |
| 动画 | 否 | 否 |
| 颜色 | 16.7 million colours (8 bits per channel) | 16.7 million colours (24-bit) |
| Where it opens | All browsers, phones, computers and photo apps | Windows and macOS apps, older software and browsers |
| 最适合 | photos you share, email, print or upload | older Windows programs, embedded devices and tools that need raw pixels |
| Main drawback | no transparency, and every re-save loses a little more detail | very large files and no transparency |
In short: choose JPG for photos you share, email, print or upload; choose BMP for older Windows programs, embedded devices and tools that need raw pixels.
Frequently asked questions
- How do I convert JPG to BMP?
- Upload your JPG file above. It is converted to BMP automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
- Does converting JPG to BMP lose quality?
- No new loss is added: BMP stores the picture exactly as it is. Detail that JPG compression removed earlier can’t be restored.
- JPG or BMP: which should I use?
- Use JPG for photos you share, email, print or upload. Use BMP for older Windows programs, embedded devices and tools that need raw pixels. Keep in mind the main drawback of BMP: very large files and no transparency.
- What is a JPG file?
- JPG is the standard format for photos. It shrinks files by discarding detail the eye barely notices, which suits photographs but blurs text and sharp edges.
- Is the JPG to BMP converter free?
- Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.
使用 JPG to BMP 可以做什么
在开始之前查看主要功能。
- Convert JPG files to BMP online
- Fill transparent areas with a background colour of your choice
- Switch to any other output format in Settings
- Batch-convert many JPG files into one ZIP
- Preview the result before you download
设置参考
5 个设置
JPG to BMP 的可用控件。
设置
- 输出格式下拉框
- Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.选项: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
- 质量滑块范围: 20–100 · 默认: 90
- For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
- 无损模式开／关
- For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
- 背景填充取色器
- For JPG, BMP and image-to-PDF output, which can’t store transparency: the colour that fills transparent areas (white by default).
模式
- 单个文件 / 批量下拉框
- 使用共享设置处理一个文件或一批文件。批量结果下载为一个 ZIP。选项: 单个文件批量
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