Convert BMP to PNG free online. Shrink bulky bitmaps to compact, lossless PNG with transparency. No upload — runs in your browser. No sign-up, no limits.
No Data Collection
No database, no accounts. We literally can't see your images.
Blazing Fast
Native browser processing — no upload, no waiting.
100% Free
No limits, no watermarks, no hidden fees. Ever.
No Account Required
Sign in? Never. Just open the tool and use it.
You can convert up to 30 images at once.
Picovert can convert your other files to PNG format:
Picovert can convert your BMP files to these other formats:
BMP is an old uncompressed bitmap format, so its files are very large for what they contain. PNG is also lossless but adds efficient compression, so converting BMP to PNG keeps the image identical while shrinking the file dramatically — often by 70% or more. PNG also displays in every browser, whereas BMP frequently does not.
Unlike BMP, PNG supports an alpha channel, so it is a better base for web graphics and logos. Picovert converts BMP to PNG entirely in your browser with no upload, so your files stay on your device. If you need an even smaller file for a photograph, convert to JPG or WebP and accept lossy compression.
An uncompressed 24-bit BMP weighs roughly width × height × 3 bytes, so a 1920 × 1080 screenshot is about 6 MB before it holds anything a PNG couldn't. Because both formats are lossless, converting BMP to PNG sacrifices nothing: every pixel survives exactly as it was, and BMP offers no capability that PNG lacks today. The only thing you leave behind is wasted disk space.
That makes BMP-to-PNG conversion a safe way to clean up decades-old archives from flatbed scanners, screenshot utilities, and industrial software that still write BMP by default. Drop a whole batch into Picovert and each file converts locally in your browser — a practical way to reclaim gigabytes without touching a single pixel.
Drag and drop your images or click to browse. Supports PNG, JPG, WebP, AVIF, GIF, BMP, TIFF, and HEIC formats.
Select your desired output format from WebP, AVIF, PNG, or JPG. Adjust quality settings for the perfect balance.
Click convert and download your files instantly. All processing happens in your browser — no upload required.
Found it useful? Copy this snippet to add a link from your site or blog.
<a href="https://www.picovert.com/en/convert/bmp-to-png" target="_blank" rel="noopener">BMP to PNG Converter — Free Online, No Upload — Picovert</a>