BMP Converter
Upload your BMP file below and choose the output format. The URL updates instantly as you select, and conversion happens right in your browser — your files stay private.
BMP (Bitmap Image File) was developed by Microsoft in the late 1980s as the native image format for Windows. It stores pixel data with little to no compression, which means files are enormous — a 1920x1080 image at 24-bit color depth is around 6MB, compared to under 200KB for an equivalent JPG.
BMP has almost no practical use in modern workflows. The only situations where you still encounter it are legacy Windows applications, old printer drivers, industrial control software, and embedded systems that haven't been updated in decades. If you have BMP files, the right move is converting them to PNG for lossless graphics or JPG for photos.
Converting BMP to PNG is always lossless — you keep every pixel exactly but reduce file size by 50 to 80%. Converting BMP to JPG for photographic content cuts size by 95 to 99%. Either way, the output opens in any application on any device.
How to Convert BMP Files
- 1Upload your BMP file using the button above or drag it into the box.
- 2Your file loads instantly and shows a preview.
- 3Select the output format from the options shown.
- 4The specific converter opens with your file already loaded.
- 5Click convert, then download the result.
When to Use the BMP Converter
- Converting old BMP files from legacy Windows software to a format any application can open
- Reducing BMP file sizes by 95 to 99% by converting to JPG or PNG for sharing
- Preparing scanned documents saved as BMP for emailing or archiving
- Converting graphics from old design or CAD tools that only export BMP
- Modernizing a BMP clip art or asset library for use in current projects
Real World Examples
Converting BMP screenshots from a legacy CAD program
An engineer uses a 1990s CAD application that only exports BMP screenshots. Each 1024x768 screenshot is 2.3MB. Converting to PNG preserves every line, label, and dimension exactly while reducing each file to under 100KB. The PNGs attach to emails without any size warnings and open in any image viewer or document editor.
Batch converting a BMP clip art library
A school IT department inherited 500 BMP clip art images from a Windows 3.1 workstation. The collection takes up 1.2GB. Converting all files to PNG preserves solid colors and hard edges without any quality loss while bringing total storage down to under 80MB — a 93% reduction. The PNG files load in any modern browser or presentation software.
Converting a BMP wallpaper from an old Windows install
A user recovers a 1600x1200 BMP wallpaper from a backup of a Windows XP machine. The 5.5MB file won't upload to most modern cloud services or social media platforms due to the BMP format. Converting to JPG at 90% quality produces a 320KB file with no visible difference that uploads to any service instantly.
Benefits of This BMP Converter
- Convert BMP to PNG with no quality loss — both formats are lossless
- Convert BMP to JPG for 95 to 99% smaller files for photographic content
- Convert BMP to WebP for the smallest output suitable for web use
- No software installation required — runs in your browser
- Handles BMP files from any Windows version and any color depth
- Free, no account required
BMP vs Other Formats
| Format | File Size | Transparency | Best For |
|---|---|---|---|
| BMP | Very large (4-10MB typical) | No | Legacy Windows apps and embedded systems only |
| PNG | Medium (lossless) | Yes | Graphics, screenshots, logos, any lossless need |
| JPG | Small (lossy) | No | Photos, documents, sharing, email |
| WebP | Smallest | Yes | Web images, CMS uploads |
Tips for Best Results
- BMP to PNG is always lossless. You get the same visual quality at 50 to 80% of the original file size. Always choose PNG over BMP when quality must be preserved.
- For BMP photos or scanned documents, convert to JPG at 85% quality. The result looks identical but is 50 to 60 times smaller.
- If a BMP appears garbled or the colors look wrong after conversion, the source file may use a non-standard color depth (1-bit, 4-bit, or 16-bit). Try PNG output, which handles all standard BMP color depths.
- BMP doesn't support transparency. If you need the background removed, convert to PNG first, then use the background removal tool on the PNG.
- Large BMP files (over 20MB) may take a few seconds to process in the browser. Keep the tab active and wait for the download to appear.
Related Tools
BMP Conversions Available
Frequently Asked Questions
Is the BMP converter free?
Yes. The tool is completely free to use and doesn't require an account.
Are my files kept private?
Your files are processed locally in your browser and are never sent to our servers. Nothing is stored.
What file size can I upload?
You can upload files up to 50MB. For best performance, files under 10MB process fastest.
Which formats can I convert BMP to?
You can convert BMP to PNG, JPG.
Why are BMP files so large?
BMP stores every pixel's color value with no meaningful compression. A 1920x1080 image at 24 bits per pixel needs 1920 x 1080 x 3 bytes of raw data — about 6MB. JPG compresses photographs by 95% or more. PNG uses lossless compression that typically cuts BMP size by 50 to 80%.
Is there any reason to keep a file as BMP?
Rarely. Some legacy Windows applications, embedded hardware, or industrial control systems require BMP. For everything else, PNG gives lossless quality at a fraction of the size, and JPG is the right choice for photos.
Can I convert BMP to PNG without losing quality?
Yes. Both BMP and PNG are lossless formats. Converting BMP to PNG preserves every pixel exactly. The output PNG will be smaller than the BMP because PNG uses lossless compression while BMP stores raw pixel data.
Conclusion
BMP files are relics from the early Windows era. Converting to PNG or JPG makes them usable in any modern application while cutting file size dramatically. Upload your BMP using the tool above, pick the output format, and download in seconds — no software installation needed.