Convert BMP bitmap images to PNG format with lossless compression. Reduce file size up to 90% while preserving every pixel.
Drop a BMP file or click to browse
Supports all standard BMP formats — 1-bit to 32-bit color depth
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BMP to PNG Converter is a free online tool that helps you convert bmp bitmap images to png format with lossless compression. reduce file size up to 90% while preserving every pixel. With Lossless Conversion: every pixel from your bmp is preserved in the png output. perfect for screenshots, diagrams, and archival-quality images. File Size Reduction: png compression shrinks bmp files by 50–90% depending on image complexity. see the exact savings after conversion, the tool makes image tasks straightforward and efficient. Every operation runs locally in your browser — your data stays private and never leaves your device.
BMP to PNG Converter processes everything on your device, eliminating the need for server uploads or software installation. This approach is particularly useful for converting old bmp screenshots and diagrams to png for modern web use reducing bmp file sizes for email attachments and cloud storage. Whether you need lossless conversion or more advanced image operations, BMP to PNG Converter delivers reliable results without compromising on security or performance.
BMP files are uncompressed and can be 2-10x larger than PNG. PNG uses lossless compression that preserves all pixel data while drastically reducing file size, making images faster to upload, share, and store.
No. PNG uses lossless compression, meaning every pixel is preserved exactly. The visual quality is identical to the original BMP — only the file size is smaller.
All standard BMP formats are supported: 1-bit, 4-bit, 8-bit, 16-bit, 24-bit, and 32-bit (with alpha channel). The conversion preserves color depth where possible.
No. All conversion happens entirely in your browser using the Canvas API. Your BMP file never leaves your device — 100% private and secure.
Currently the tool converts one file at a time. For batch conversion, use the Image Converter tool which supports multiple files with consistent output settings.
Every pixel from your BMP is preserved in the PNG output. Perfect for screenshots, diagrams, and archival-quality images.
PNG compression shrinks BMP files by 50–90% depending on image complexity. See the exact savings after conversion.
Compare original BMP and converted PNG visually with size and dimension info for both files.
All processing happens in your browser using Canvas API. Your images never leave your device — no uploads, no servers.
BMP to PNG Converter is useful in a variety of scenarios across different workflows:
Converting old BMP screenshots and diagrams to PNG for modern web use
Reducing BMP file sizes for email attachments and cloud storage
Archiving bitmap images in PNG format for lossless long-term storage
Preparing BMP images for web publishing where PNG is the standard format
PNG's lossless compression excels with screenshots, diagrams, and text-heavy images. Unlike JPEG, PNG preserves sharp edges and text clarity perfectly.
The tool shows exact file sizes for both BMP and PNG. Complex photographic BMPs may compress less than simple diagrams, but PNG is always smaller than BMP.
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