BMP
BMP is a bitmap image format commonly associated with Windows software. It often stores image data with little or no compression, which preserves straightforward pixel data but produces relatively large files.
Open BMP ConverterBMP to PNG Converter
Convert BMP to PNG online in your browser in batches of up to 100 files. Review the result and download it without uploading the source.
Drop BMP files hereor
Supported formatBMPBatch processingUp to 100 filesYour files are privateProcessed in your browser
AVAILABLE CONVERTERS
About BMP and PNG
Learn about the source and output formats used in this BMP to PNG conversion.
PNG
PNG stores images with lossless compression and supports full alpha transparency. It is commonly used for logos, interface graphics, screenshots and artwork that needs sharp edges or a transparent background.
Open PNG ConverterInputBMP
OutputPNG
Best forphotos and web assets
Related Tools
All Images toolsAbout this tool
About BMP to PNG
Convert BMP to PNG online in your browser in batches of up to 100 files. Review the result and download it without uploading the source.
Why convert BMP to PNG?
PNG is a practical choice for graphics, screenshots and images that need transparency. The BMP source is commonly used for uncompressed raster workflows and legacy Windows software.
What changes during conversion?
The BMP source is commonly used for uncompressed raster workflows and legacy Windows software. PNG is lossless but can be larger than JPG, WebP or AVIF. Keep the original until you have checked the converted file in its destination app.
How to convert BMP to PNG
- Add the supported BMP files to the tool above.
- Review the output direction and any quality or format options.
- Start processing, inspect the result and download or copy the PNG output.
Batch limits and privacy
Choose up to 100 images, with a 30 MB per-file limit and a 500 MB combined limit. Files are processed sequentially and multiple results download as one ZIP. Supported processing happens on this device, so the source does not need to be uploaded to zer.ai.
Compatibility checklist
- Keep the original source until the output has been verified.
- Open the result in the application or platform where it will be used.
- Check dimensions, transparency and visual quality.
- If decoding fails, try a current browser and a smaller known-good sample.
Three simple steps
How it works
- 1Choose
Add a supported file or paste your content.
- 2Process
The tool works locally in your browser when supported.
- 3Download
Save the result directly to your device.
Frequently asked questions
BMP to PNG FAQ
How do I convert BMP to PNG?
Add a supported BMP file, review the available settings, start the conversion and then download or copy the PNG result.
Why convert BMP to PNG?
PNG is a practical choice for graphics, screenshots and images that need transparency.
Will converting BMP to PNG change quality or features?
PNG is lossless but can be larger than JPG, WebP or AVIF. Keep the original and inspect the output before replacing it.
Can I batch convert BMP to PNG?
Choose up to 100 images, with a 30 MB per-file limit and a 500 MB combined limit. Files are processed sequentially and multiple results download as one ZIP.
Are files uploaded to a server?
No. Supported processing runs locally in your browser during the normal workflow.
Why might a file fail?
The browser may not decode damaged files or every BMP variant. BMP files are usually much larger and transparency is not preserved by this converter.