PNG to BMP Converter
Convert a PNG image to BMP. Upload a PNG and download an uncompressed bitmap file.
Click to upload a PNG image
Your file is processed entirely in your browser
Recommended Settings
Pro Tips
- •BMP files are uncompressed, so they're significantly larger than PNG for the same image - expect a much bigger download
- •Since BMP doesn't support transparency in this tool's 24-bit output, any transparent areas in your PNG are filled with white
- •Every pixel is stored at full 24-bit color depth with no compression, guaranteeing pixel-perfect accuracy
- •The whole file is converted locally in your browser - nothing is uploaded anywhere
Most Popular
Most users convert small icons or graphics where the larger BMP file size isn't a concern
When to Use This Tool
Convert PNG images to BMP for older software or embedded systems that only support the basic bitmap format.
Generate BMP images for Windows desktop applications, icons, or wallpapers that expect the native bitmap format.
Store images in an uncompressed format to guarantee no compression artifacts are ever introduced.
Export PNG images as BMP for processing pipelines or tools that specifically require uncompressed bitmap input.
How It Works
Read the uploaded PNG file and decode it using the browser's native image support
Draw the image onto a canvas with a white background fill, since this tool's BMP output doesn't include an alpha channel
Read the canvas's raw pixel data and manually encode it into the BMP file format
Display the resulting BMP, ready to preview and download
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Custom BMP encoder for optimal performance on modern browsers.
Secure
No data collection, no tracking, no sign-up required.
Frequently Asked Questions
Why are BMP files so much larger than PNG?
BMP stores every pixel's color value directly with no compression, unlike PNG's lossless compression. This guarantees pixel-perfect output but results in significantly larger files.
What happens to transparency in my PNG?
This tool exports 24-bit BMP without an alpha channel, so any transparency in the original PNG is filled with white before conversion.
Is my image uploaded to a server?
No. The entire file is read, converted, and encoded locally in your browser. Your image never leaves your device.
Can I open BMP files in image editors?
Yes. BMP is supported natively by virtually every image editor and operating system, including Windows Paint, Photoshop, and GIMP.
What bit depth does the output use?
Pages are exported as 24-bit BMP files (8 bits each for red, green, and blue), which is the most widely compatible BMP format across different software.