Free online image converter
BMP to PNG conversion
Convert BMP to PNG online to replace a large Windows bitmap with a lossless, more web-friendly PNG. The result keeps the decoded image dimensions and works well for screenshots, graphics, and editing workflows.
Why convert BMP to PNG?
Use the right format
PNG is a practical choice for lossless web use and easier sharing of bitmap images. Converting creates a new file and leaves your original BMP unchanged.
Know the tradeoff
BMP uses usually uncompressed compression; PNG uses lossless compression. Only browser-decodable Windows bitmap variants are supported.
How to convert BMP to PNG
- 1Choose your BMP
Select one BMP image up to 10 MB. Its real file signature and dimensions are checked before conversion.
- 2Convert in your browser
The image is decoded and re-encoded as PNG on your device. It is not sent to a conversion server.
- 3Download the PNG
Download the validated result immediately, or delete it from the page and choose another image.
BMP vs PNG
| Format | Best for | Compression | Transparency | Animation |
|---|---|---|---|---|
| BMP | legacy Windows workflows and uncompressed bitmap interchange | Usually uncompressed | Limited and variant-dependent | No |
| PNG | graphics, screenshots, logos, and images that need transparency | Lossless | Yes | APNG in compatible software |
BMP is a bitmap image format associated with Windows. Many BMP files are uncompressed, which makes them simple but often much larger than PNG or JPG files. PNG is a lossless image format that keeps sharp edges and transparent pixels, making it a strong choice for graphics, screenshots, logos, and interface assets.
Format references: Microsoft bitmap header documentation · W3C PNG specification
BMP to PNG FAQ
How do I convert BMP to PNG online?
Choose a BMP file, select Convert to PNG, then download the finished PNG image. The conversion runs in your browser, so there is no upload or account step.
Is this BMP to PNG converter free?
Yes. You can convert one image at a time for free without creating an account. The current input limit is 10 MB and 40 megapixels.
Does converting BMP to PNG reduce image quality?
PNG output is encoded losslessly after the browser decodes the BMP. Any detail already missing from the source cannot be restored.
What should I know before converting BMP to PNG?
Only browser-decodable Windows bitmap variants are supported. Files are processed on this device and the downloaded result is not stored by Super Media.