BMP to PNG Converter
Convert a BMP image to PNG. Upload a BMP file and download a lossless PNG.
Click to upload a BMP image
Your file is processed entirely in your browser
Recommended Settings
Pro Tips
- •PNG uses lossless compression, so no visual quality is lost during conversion
- •BMP has no transparency to begin with, so the PNG output is fully opaque, just like the source
- •PNG is supported natively by every modern browser, operating system, and image editor
- •The whole file is converted locally in your browser - nothing is uploaded anywhere
Most Popular
Most users convert to PNG when they need lossless quality or transparency support
When to Use This Tool
Convert to PNG for a format supported everywhere, from browsers to image editors.
Preserve every pixel exactly, with no compression artifacts, by converting to PNG.
Use PNG for graphics, logos, or screenshots that need sharp edges and transparency.
Convert to PNG before editing in image software that expects a widely-supported, lossless format.
How It Works
Read the uploaded BMP file and decode it using the browser's native image support
Draw the image onto a canvas, preserving any alpha transparency
Encode the canvas as a PNG image using the browser's native lossless encoder
Display the resulting PNG, ready to preview and download
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Browser native Canvas API for optimal performance on modern browsers.
Secure
No data collection, no tracking, no sign-up required.
Frequently Asked Questions
Will I lose any image quality?
No. PNG uses lossless compression, so the converted file is pixel-for-pixel identical to the decoded source image.
Does PNG preserve transparency?
BMP doesn't support transparency, so there's nothing to preserve - the PNG output is fully opaque, just like the source.
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.
Why convert to PNG instead of keeping the original format?
PNG offers universal compatibility with lossless quality, making it a safe choice when you're not sure what a downstream tool or platform expects.
Can I convert multiple files at once?
This tool converts one file at a time. For batch conversion, you'd need to repeat the process for each file.