Convert BMP to PNG
Free online BMP to PNG converter. Drop an image below and convert it instantly — right in your browser, with no upload and no sign-up.
100% private — your image is processed in your browser and never uploaded.
Why convert BMP to PNG?
BMP is an uncompressed raster format from early Windows. It preserves every pixel but produces very large files, so it is mainly used for compatibility with legacy software. PNG is a lossless format that keeps every pixel intact and supports a full alpha (transparency) channel. Files are larger than JPG but quality never degrades.
- PNG supports transparency, so you can later cut out backgrounds — something BMP cannot store.
- Get a universally supported, lossless PNG that every browser, editor and operating system can open.
- Replace the bulky, uncompressed BMP with a much smaller PNG file at the same visual quality.
How to convert BMP to PNG
- Upload your BMP file. Drag and drop your BMP image into the box above, or click to browse. Files up to 5 MB are supported.
- Adjust settings (optional). PNG is lossless, so there are no quality settings to adjust — just convert.
- Click "Convert to PNG". The conversion runs instantly in your browser. Nothing is sent to a server.
- Download your image. Click the download button to save your new PNG file to your device.
BMP vs PNG
| Property | BMP | PNG |
|---|---|---|
| Compression | Lossless | Lossless |
| Transparency | No | Yes |
| Best for | legacy Windows applications and workflows that require raw, uncompressed bitmaps | logos, icons, screenshots, graphics with text, and any image that needs a transparent background |
Frequently asked questions
Is the BMP to PNG converter free?
Yes. ConvertPix is completely free with no limits on the number of conversions, no watermarks, and no account required.
Are my BMP images uploaded to a server?
No. Conversion happens entirely inside your web browser using your own device. Your images are never uploaded, stored, or seen by anyone.
Will I lose quality converting BMP to PNG?
No. PNG is a lossless format, so every pixel from your source image is preserved exactly.
Does PNG support transparency?
Yes, PNG supports a transparency (alpha) channel, so transparent areas are preserved.
What is the largest file I can convert?
You can convert BMP images up to 5 MB. Because processing is done on your device, very large images depend on your device's available memory.