BMP to PNG Converter
PNG is a practical replacement for an uncompressed BMP screenshot or diagram. It can store the decoded pixels losslessly and is widely accepted by browsers and upload forms.
Drop BMP images here, or click to choose files
Convert a bitmap for modern apps
PNG is a practical replacement for an uncompressed BMP screenshot or diagram. It can store the decoded pixels losslessly and is widely accepted by browsers and upload forms.
Download the BMP test image
Try it and check the result
- Add the BMP and choose PNG.
- Convert, download and compare the width and height with the source.
- Inspect lines and text at 100% and compare the actual file sizes.
What changes in the output
- There is no JPG-style quality slider; PNG encodes the decoded pixels losslessly.
- The result is often smaller than uncompressed BMP, but file-size reduction is not guaranteed for every source.
- Conversion cannot create transparency where the source is opaque or restore detail from an earlier compression step.
If the result looks wrong
Older or specialized BMP variants may not decode in every browser. Open the test BMP first to distinguish a browser limitation from a source-file problem.
Want to understand decoding, output quality and metadata? Read how browser image conversion works.
Continue with another image tool
After checking an image, choose a tool for the change you need. Each tool has a different purpose.
Compress Images to KB or MB
Reduce file size to fit a KB or MB limit. Compression may also reduce pixel dimensions to reach your target.
Image Resizer and Social Media Sizes
Change pixel width and height for a website, print layout or social media preset. Enlarging an image does not restore missing detail.
Metadata Remover
Need to strip or edit EXIF before sharing? Open Metadata Remover to remove GPS, camera data and other hidden fields.
Image Size Finder
Check pixel width, height, megapixels and aspect ratio instantly for one image or a full batch.
Related Image Converters
Explore more image conversion options for BMP, PNG, and other popular web formats.
BMP to PNG FAQ
How do I convert BMP to PNG?
Drop your BMP file into the tool above, then download the PNG. Everything runs in your browser - your image is never uploaded to a server.
Is converting BMP to PNG free?
Yes. No signup or watermark is required. Batch size is limited by your device memory, and images above 40 million pixels are rejected.
Will I lose quality converting BMP to PNG?
PNG losslessly stores the decoded pixels and alpha channel. Source metadata, color profiles and detail already lost in the original are not restored.
What is the difference between BMP and PNG?
Convert large BMP bitmaps to compact PNG. Lossless with full transparency — logos, screenshots, line art.
Does converting BMP to PNG need a plugin or an install?
No. PNG is one of the three formats browsers can encode themselves, so nothing extra is downloaded and conversion is near-instant.
Is transparency kept in the PNG?
Yes. If the BMP has an alpha channel it carries through to the PNG.
Is EXIF and GPS data kept in the PNG?
No. Conversion goes through raw pixels, so EXIF, GPS coordinates, IPTC and XMP are all dropped. That is usually what you want before sharing a photo - but if you need to keep the format and only remove metadata, use the Metadata Remover instead.
Convert BMP to PNG Online Now
Fast, 100% private, and completely free in-browser converter. Drop your BMP files and download optimized PNG in seconds.