Yes. The container stays BMP; any tool that accepts BMP input will accept the output.
BMP Image Resizer
Resize your BMP images in seconds, from your browser. No installation, no sign-up. 100% free and secure.
Drop your images here
or click to select (max 24 images)
Why use our image resizer?
Exact dimensions or percentage
Set your dimensions in pixels for precise control, or resize by percentage to maintain the original proportions. Perfect for web, social media, or print.
Your files stay private
Images are processed on our secure servers and automatically deleted after 24 hours. No account required, nothing retained.
Zero added compression
Our resizing engine adds no extra compression. Your images keep their original sharpness, colors, and quality. Guaranteed.
Resize up to 24 images at once
Upload up to 24 images and resize them all in one go. A real time saver for batch workflows.
Resize BMP bitmaps with pixel-level accuracy
BMP is the uncompressed Windows bitmap format still used in medical imaging, GIS exports, CAD tools and legacy capture software. Because BMPs are uncompressed, they get huge fast — a 5000×5000 24-bit BMP weighs about 75 MB.
When to resize a BMP
Many BMPs start life much larger than they need to be: scan-to-BMP workflows, CAD renders at print resolution, full-sensor captures. Trimming a BMP from 8000 px to 2000 px divides the file size by 16 while keeping the format your tool expects.
How the BMP container is preserved
The output stays a BMP. Color depth (24-bit RGB or 32-bit RGBA) is preserved from the source when the pipeline allows it. No JPEG-style compression is added, because that would break BMP consumers.
Batch resize up to 24 BMP files at once
Drop up to 24 BMP files (up to 10 MB each), apply the same dimensions to the whole batch, and download a single ZIP. Files are kept 24 hours, then deleted automatically.
Frequently asked questions
Dramatically. File size scales with pixel count, so halving each side divides the weight by four.
Yes. Both full-color and RGBA BMPs are handled.
If you also want smaller files through compression, PNG is a better container. Our resizer strictly keeps BMP.
No extra compression is applied. We only change the geometry, so your image keeps its original sharpness, colors, and encoded quality.
Up to 10 MB per file and up to 12,000 px per side on input. Output can match those same limits.
Only if you ask. The "Don't enlarge if smaller" option keeps sources at their native size when they are already below the target.
Temporarily, for 24 hours, so you can download them again if needed. They are deleted automatically after that. No account is ever created.
Yes. Resizing BMP images is free, with no account required and no hidden daily quota beyond basic fair-use limits.