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Download NowBMP to PNG Converter.
Convert BMP to PNG locally with a browser-based tool. Download lossless PNG output for editing or publishing, without uploads.
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Convert your file
INPUTBMP
OUTPUTPNG
Up to 12 files · 20 MiB each · 30 megapixels per image · uncommon formats have documented limits
Output settings (optional)
Choose your source image to begin.
Visual comparison
Preview of your first selected file.
Original
ConvertedNot converted yet
Preview is for checking visual appearance. File-size reduction is not guaranteed. PDF files show output details instead of an image preview.
Converted files
STEP BY STEP
How to convert BMP to PNG
- Choose a source file. Select a real BMP file from your device.
- Run the local converter. If relevant, set the quality and maximum dimensions before converting.
- Download the result. Save the generated PNG file. Your original file is unchanged.
FORMAT GUIDE
Why convert BMP to PNG?
PNG provides lossless export and often compresses simple bitmap illustrations or screenshots efficiently.
- Modernizing bitmap screenshots.
- Preparing lossless artwork for web publishing.
- Moving BMP assets into a PNG-based graphics workflow.
UNDERSTAND YOUR FILES
BMP vs. PNG: what changes?
A bitmap format often used in legacy software. Uncompressed output can be very large.
A losslessly encoded still-image format, useful for graphics, screenshots, text, and transparent backgrounds.
PNG provides lossless export and often compresses simple bitmap illustrations or screenshots efficiently. Choosing an output format changes how another app reads the file; it does not restore detail missing from your source.
Which settings should you choose?
Start with Original dimensions to retain the decoded pixel size. Select a maximum edge only when you need a smaller output image.
Your files and privacy
Your selected file is converted on your device. You can download the new file while keeping the original unchanged.
Some formats work differently across browsers and devices. Check the converted result before using it for important work. Advertising and other optional website services may have separate privacy practices.
Format compatibility and limitations
Some less common BMP formats may not decode in every browser. Converting to PNG cannot repair defects already present in the BMP.
Actual output behavior depends on the input file, your browser, device resources and the converter engine. Check important files before sharing or replacing them.
HELP & ANSWERS
BMP to PNG questions
Is BMP to PNG lossless?
The PNG export is lossless relative to the pixels decoded by the browser, unless you choose resizing.
Why would a BMP fail to load?
Browser support varies for uncommon BMP encodings.
Do I need to upload my BMP?
No. The image is converted on your device.