BMP to PNG Converter
Convert BMP images to PNG online in seconds — free, unlimited, and 100% private. Bulk conversion included.
How to convert BMP to PNG
- Upload your BMP filesDrag & drop, browse, or paste — convert one file or a whole batch at once.
- Tune quality & sizeUse the quality slider and optional max-width to balance sharpness and file size.
- Convert instantlyYour BMP is converted to PNG right in your browser in under a second — nothing is uploaded.
- DownloadSave files one by one or grab everything as a single ZIP archive.
Why convert BMP to PNG?
BMP is uncompressed Windows bitmap — pixel-perfect but large. PNG, on the other hand, is lossless quality with full alpha transparency — ideal for graphics and screenshots.
Different platforms, apps, and workflows demand different image formats. Converting BMP to PNG takes under a second, runs privately in your browser, and works on any device — phone, tablet, or desktop.
BMP vs PNG — quick comparison
| Feature | BMP | PNG |
|---|
| Compression | Uncompressed | Lossless |
| Transparency | No | Yes |
| Typical file size | Very large | Medium–large |
| Compatibility | Universal | Universal |
Frequently asked questions
Is this BMP to PNG converter free?
Yes — completely free with no limits, no signup, and no watermarks. Convert as many BMP images to PNG as you like.
Are my images uploaded to a server?
No. Conversion happens locally in your browser using the HTML5 Canvas API, so your images never leave your device. Only formats that browsers can't natively process are converted via our encrypted server API, and those files are deleted immediately.
Will converting BMP to PNG reduce image quality?
No — PNG is lossless, so the conversion preserves every pixel of the original. You can also set a max width to downscale and shrink the file size.
Can I convert multiple BMP files to PNG at once?
Yes. Drop or select as many files as you need — each is converted and listed individually, and you can download them all together as a ZIP. For mixed input formats, use our Bulk Image Converter.
Does it work on mobile phones?
Absolutely. ToolsCrow is mobile-first: the converter runs entirely in your phone's browser on Android and iOS — no app installation needed.
