Convert BMP images to PNG online — free, private, and instant.
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Files are processed in your browser and never uploaded
BMP to PNG Converter · runs entirely on your device
This tool converts BMP images to PNG directly in your browser. The file is decoded onto an HTML canvas and re-encoded as PNG, so it never touches a server and the conversion finishes in milliseconds.
PNG is lossless and preserves transparency, which makes it ideal for logos, icons, and screenshots.
BMP is an uncompressed (or lightly compressed) raster format from early Windows. Each pixel is stored directly, so files are large but never lose quality.
Best for: Simple, legacy Windows workflows where compatibility beats file size. Trade-offs: Very large files, no real transparency support, and no metadata — almost always converted to PNG or JPG for modern use.
PNG is a lossless raster image format that supports up to 16.7 million colours plus a full 8-bit alpha channel for transparency. It uses DEFLATE compression, so re-saving a PNG never degrades quality.
Best for: Logos, icons, screenshots, line art, and any image that needs sharp edges or a transparent background. Trade-offs: Files are much larger than JPG or WebP for photographs, and PNG cannot store animation.
| Property | BMP | PNG |
|---|---|---|
| Compression | Lossless | Lossless |
| Transparency | No | Yes |
| Typical use | Simple | Logos |
Drop your BMP file into the box above, wait a moment while it is processed in your browser, then download the PNG result. Nothing is uploaded to a server.
Yes. Every tool on ConvertFlow is free to use with no sign-up, no watermark, and no file-count limits.
The conversion runs entirely in your browser using the Canvas API. Your files never leave your device.
Yes — add several BMP files and each one is converted to PNG and offered as a separate download.
Looking for something else? See all converters.