BMP to PNG Converter
Convert your BMP (Bitmap) images to the versatile and lossless PNG format, preserving transparency where available.
Click to select BMP files or drag & drop
(Max 10MB per file. 24/32-bit uncompressed supported)
Why Convert BMP to PNG?
Converting BMP files to PNG can be beneficial for several reasons:
- File Size Reduction (Often): PNG uses lossless compression, which can often result in smaller file sizes compared to uncompressed BMPs, especially for images with large areas of flat color or repeating patterns, without any loss of quality.
- Transparency Support: PNG fully supports an alpha channel for true transparency. If your source BMP is a 32-bit file with alpha information, converting to PNG will preserve this transparency, which is ideal for web graphics, logos, and overlays.
- Web Standard: PNG is a widely supported and recommended format for lossless images on the web.
- Better for Graphics & Text: PNG excels at rendering sharp lines, text, and graphics clearly.
Key Features
Lossless Conversion
- • **Batch BMP to PNG:** Convert multiple BMP files at once.
- • **Preserves Alpha Channel:** Transparency from 32-bit BMPs is maintained in the PNG output.
- • **Resizing Option:** Change image dimensions before converting to PNG.
User Experience
- • **Filename Customization:** Add prefixes or suffixes to output PNG files.
- • **Download Options:** Download individually or as a ZIP archive.
- • **Client-Side Conversion:** All processing is done in your browser.
How to Convert BMP to PNG
- Upload BMP Files: Drag and drop your BMP images, or click to select files. The tool supports common uncompressed 24-bit and 32-bit BMPs.
- Adjust Settings (Optional):
- **Resize:** If needed, enable resizing and set new dimensions or a percentage.
- **Naming:** Add a prefix or suffix for the output PNG filenames.
- Convert: Click the "Convert BMPs to PNG" button.
- Download: Download your converted PNG files.
Frequently Asked Questions
What types of BMP files are supported for PNG conversion?
This tool primarily supports uncompressed 24-bit (RGB) and 32-bit (BGRA/RGBA with alpha channel) BMP files. These are the most common variants.
Will transparency be preserved when converting from BMP to PNG?
If your source BMP is a 32-bit file that includes an alpha channel for transparency, that transparency will be preserved in the output PNG. Standard 24-bit BMPs do not have transparency, so the resulting PNG will be opaque.
Will the PNG file be smaller than the BMP?
Usually, yes. PNG uses lossless compression, while common BMPs are uncompressed. This means PNG can store the same image data more efficiently, resulting in a smaller file size without any loss of visual quality.
Are my images uploaded to a server?
No, all image parsing and conversion are performed directly in your web browser.
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