JPG Won't Open? Convert to BMP Instantly
Fast, instant JPG to BMP conversion. No signup required. Just drop your .jpg file and get .bmp in seconds.
Batch Settings
Converting to BMP won't restore lost quality
Your JPG file has already undergone lossy compression. Converting to BMP preserves what's left — it prevents further degradation from re-saving — but it will not magically sharpen a blurry image or recover discarded audio frequencies.
Some metadata may not survive
Your JPG file may contain EXIF, IPTC, XMP, ICC metadata. BMP has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
您是否曾遇到过这样的情况：一张精美的JPG图片，在某些特定场景下却显得力不从心？尤其是在追求极致画质、无损编辑，或是与一些老牌软件和特定硬件打交道时，BMP格式的优势便会凸显出来。JPG虽然压缩效率高，适合网络传输和日常分享，但其有损压缩的特性，在反复编辑或需要像素级精确度时，可能会让画质受损。相比之下，BMP作为一种历史悠久且广泛支持的位图格式，以其无损的特性，能完美保留图像的每一个细节和色彩信息。无论是为了专业的设计需求，还是仅仅为了在某些对图片格式有严格要求的平台或设备上顺利使用，将JPG转换为BMP都是一个明智的选择。我们的工具将帮助您轻松实现这一转换，让您的图片在任何环境下都能展现最佳状态。
- 微信表情包制作与分享
- 游戏素材无损提取与修改
- 旧版系统或专业软件兼容
在大陆和台湾地区，一些历史较久的图像处理软件或专业设备（如部分医疗影像系统、工业控制界面）对BMP格式的兼容性依然非常良好，有时甚至优于对新型压缩格式的支持。此外，对于追求高精细度像素艺术创作的爱好者，BMP的无损特性也使其成为理想的中间格式。
About JPG to BMP Conversion
Dealing with a JPG file that won't open on your device? You're not alone — JPG compatibility issues are one of the most common reasons people search for a file converter. JPG (JPEG) uses lossy compression, making it ideal for photographs and complex images where small file size matters more than pixel-perfect quality.
The fix is simple: convert your JPG to BMP. BMP is an uncompressed raster format that preserves every pixel but produces very large files. This conversion lets you preserve files for long-term archival, solving the problem in seconds rather than hours of troubleshooting.
Full Name: JPG uses JPEG Image, while BMP uses Bitmap Image. Compression: JPG uses Lossy, while BMP uses None (uncompressed). Transparency: JPG uses No, while BMP uses No. Converting JPG to BMP maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your JPG file on secure servers in Germany — upload, convert, download. Your files are encrypted via TLS and automatically deleted within 24 hours. No account needed, no software to install, and it works on any device with a browser.
This conversion is ideal when you You need maximum device and software compatibility. Common misconception: ""Converting JPG to BMP will improve the quality"" — in reality, no. jpg has already permanently discarded data during compression. converting to bmp preserves what's left but cannot restore lost detail. the file will just be larger.
The conversion engine behind CocoConvert uses FFmpeg, Sharp, and qpdf — the same open-source libraries trusted by Netflix, YouTube, and enterprise platforms. Pro users can batch convert up to 100 files at once.
How to Convert JPG to BMP
- 1
Add your JPG file
Drag and drop your .jpg file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick BMP output
Select .bmp as the target format. CocoConvert automatically applies the best quality settings for this conversion.
- 3
Start conversion
Hit the Convert button. The image engine processes your file server-side — no CPU drain on your device.
- 4
Save your file
Once done, download your .bmp file. For batch jobs, download all at once as a zip.
What Happens When You Convert JPG to BMP
Your JPG image is decoded into raw pixel data, then re-encoded as BMP. Current quality is preserved as-is — no further degradation.
Your JPG file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
Pixels are re-encoded using no compression (raw pixel storage)
Metadata (EXIF, ICC profiles) is transferred where BMP supports it
The BMP file is saved and ready for download
JPG vs BMP — Detailed Comparison
| Feature | .JPG | .BMP |
|---|---|---|
| Full Name | JPEG Image | Bitmap Image |
| Compression | Lossy | None (uncompressed) |
| Transparency | No | No |
| Animation | No | No |
| Color Depth | 8 bits/channel (24-bit color) | up to 32 bits/channel |
| HDR Support | No | No |
| Typical File Size | 2–5 MB per photo | 10–50 MB per photo (uncompressed) |
| Platform Support | Universal | Universal |
| Browser Support | Universal | Limited |
| Year Created | 1992 | 1986 |
| Open Standard | Yes | No |
Should You Convert JPG to BMP?
When to Convert
- ✓You need maximum device and software compatibility
When NOT to Convert
- ✗You're hoping to improve image/audio quality — converting lossy to lossless cannot recover lost data
Common Mistakes When Converting JPG to BMP
"Converting JPG to BMP will improve the quality"
No. JPG has already permanently discarded data during compression. Converting to BMP preserves what's left but cannot restore lost detail. The file will just be larger.
"BMP will be smaller than my JPG file"
BMP uses no compression, so the output file is often larger than a lossy JPG. If you need a small file, BMP may not be the right choice.
Frequently Asked Questions
Why won't my JPG file open?
JPG files may not open if your device lacks the right codec or application. Converting to BMP — a more widely supported format — usually resolves this. BMP is an uncompressed raster format that preserves every pixel but produces very large files.
Is it safe to convert JPG to BMP online?
Yes. CocoConvert encrypts your file via TLS, processes it on isolated servers in Germany, and permanently deletes it within 24 hours. Your files are never shared or analysed.
Will I lose quality converting JPG to BMP?
Converting JPG to BMP maintains high quality with CocoConvert's optimised encoder settings. CocoConvert uses high-quality encoder defaults to preserve as much fidelity as possible.
How large can my JPG file be?
Free users can convert files up to 250 MB each. Pro users get a 5 GB limit per file, and Business API users have custom limits.
Can I convert JPG to BMP on my phone?
Absolutely. CocoConvert works in any modern browser — iOS Safari, Android Chrome, and all desktop browsers. No app required.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.