BMP → PNG
BMP to PNG
BMP stores pixels with little or no compression, so files are often huge. PNG keeps the image losslessly, usually takes less space and supports transparency. The conversion runs locally in your browser.
The image is converted in your browser — the file is not uploaded.
How to convert BMP to PNG
- 1Upload a BMP or drop it into the window
- 2Press “Convert BMP to PNG”
- 3Download the PNG file
More about BMP to PNG
Why convert BMP to PNG
BMP is a simple bitmap format that stores image data with little compression. That makes it convenient for system graphics but inefficient for storage, email and the web. PNG compresses the image losslessly and is supported by all modern browsers and editors.
The conversion is useful if you need to:
- reduce the size of a BMP file without losing quality;
- open the image in a browser or modern editor;
- keep sharp edges and text without compression artefacts;
- prepare graphics for a website or presentation.
How it works
The browser decodes the BMP, draws it on a canvas and exports it as PNG. No upload is needed. If the browser cannot decode the file, the server processes it with sharp and deletes the result after download.
What to know
PNG is usually smaller than BMP but larger than JPG. For photos, JPG may be a better choice; for graphics, screenshots and images with transparency, PNG is the safer option. For the web, WebP can reduce the size even further.
Questions and answers
Does PNG preserve the BMP quality?
Yes. PNG uses lossless compression, so the visible pixels remain the same while the file usually becomes smaller.
Is transparency preserved?
If the BMP contains an alpha channel, PNG keeps it. Most BMP files are fully opaque.
Is the file uploaded?
No. The conversion runs in your browser using the Canvas API.
What is the maximum file size?
Up to 25 MB per image.