BMP to PNG Converter
Convert BMP to PNG with lossless compression and transparency support. Perfect for legacy image optimization while maintaining image quality and supporting modern web standards.
Drop your BMP image here
or click to browse files
Complete Guide: BMP to PNG Converter
Everything you need to know about using this tool effectively
The BMP to PNG Converter transforms uncompressed BMP bitmap files into compressed PNG images. PNG uses lossless compression to reduce file size while preserving every pixel exactly. The conversion produces smaller files with identical quality to the original BMP. The tool processes everything in the browser, so your image never leaves your device.
This tool reads your BMP file, renders it to a canvas, and exports it as PNG format. PNG uses lossless compression, so the output is pixel-identical to the BMP source. BMP does not support transparency, so the PNG output will be opaque unless the source has been modified.
Reduce file size without quality loss
Convert BMP files to PNG to shrink them while keeping every pixel identical, ideal for archiving and editing.
Web publishing
Transform BMP images into web-friendly PNG files that load faster and are supported by all browsers.
Image editing workflows
Convert BMP to PNG for use in image editors that handle PNG more efficiently than BMP.
Screenshot and documentation
Convert BMP screenshots to PNG for smaller file sizes in documentation, tutorials, and bug reports.
Upload an image
Drag and drop or click to browse for your BMP file.
Convert
Click Convert. The tool processes the image and generates a PNG file.
Download
Save the converted PNG image to your device.
PNG compression is lossless, so the output is identical to the BMP source in every pixel.
The file size reduction depends on image content. Simple graphics compress better than photographs.
PNG is widely supported across all browsers, editors, and operating systems.
For photographs where small file size matters more than lossless quality, consider JPG instead.
Will the quality change?
No. PNG uses lossless compression, so every pixel from the BMP source is preserved exactly. There is no quality loss.
Is my image uploaded to a server?
No. All processing happens in your browser using the Canvas API. The image never leaves your device.
What is the maximum file size?
The tool supports images up to 50MB. BMP files can be very large, but the PNG output will be smaller.
How much smaller will the file be?
It depends on image content. Simple graphics may shrink by 50 percent or more. Complex photographs compress less.
Can I convert multiple images at once?
Yes. Upload multiple files and the tool converts all of them.