PNG to BMP

Turn PNG images into standard 24-bit BMP files, in your browser.

Drop PNG files here or click to browse

Processing happens on your device. Nothing is uploaded.

100% Private

Files are processed locally in your browser. They never touch our servers.

Smart Defaults

Sensible settings are applied automatically. Fine tune them only if you want to.

Batch Processing

Drop multiple images at once and download everything together as a ZIP.

How to use PNG to BMP

Drop your images onto the page, or click to pick them from your device
Use the default settings, or adjust the options for your file type and target result
Download the finished images one by one, or save the full batch as a ZIP

What PNG to BMP is for

Use this tool when an older app, device or workflow needs an uncompressed bitmap. It turns your PNG into a standard 24-bit BMP entirely in your browser, placing any transparent areas on a white background.

Create a standard 24-bit BMP from a PNG for an old app or device.
Produce a raw, uncompressed bitmap for legacy Windows software.
Hand a workflow the exact BMP format it expects, made locally.
Convert a batch of PNGs to BMP in one pass.

Privacy note: This tool runs locally in your browser. Your selected image files are not uploaded to CompressImage.ca. Read more on our promise page.

Best practices for better results

Image optimization works best when you choose the right balance between file size, visual quality, dimensions, format compatibility and privacy. These tips help you get a cleaner result.

Only convert to BMP when something specifically requires a raw bitmap.
Expect the BMP to be much larger than the PNG; that is normal.
Transparent areas are flattened onto white, so check that suits your image.
For everyday use, PNG is almost always the better format to keep.

Convert PNG to BMP in your browser

PNG to BMP creates a standard 24-bit, uncompressed bitmap from a PNG image. It is what you need when an older app, device or workflow asks specifically for a raw BMP file. The conversion runs entirely in your browser, so nothing is uploaded.

HOW TO CONVERT PNG TO BMP

Drop one or more .png files onto the upload area, or click to browse
Remove anything from the batch list you did not mean to add
Click Convert to write a standard 24-bit BMP for each image
Download each BMP on its own, or grab the whole batch at once

What to expect from the BMP

It is a standard 24-bit BMP that opens in any Windows app or editor
It will be larger than the PNG, because BMP stores every pixel uncompressed
Transparent areas are placed on a white background, since BMP has no alpha
The image looks identical to the PNG at full quality

When BMP is worth it

Only convert to BMP when something genuinely needs a raw bitmap, such as legacy software, embedded hardware or a specific import step. For everyday use, PNG is smaller and more capable, so keep it. To shrink an existing BMP instead, see Compress BMP, or convert one back with BMP to PNG.

Related image tools

These tools solve similar image optimization problems and work the same way: locally in your browser, with no required upload.

JXL to JPG: Convert JPEG XL files to widely supported JPG
JXL to PNG: Convert JPEG XL files to lossless PNG
JXL to WebP: Convert JPEG XL files to small WebP images
JPG to JXL: Convert JPG photos to next-gen JPEG XL

PNG to BMP FAQ

What kind of BMP does this create?

A standard 24-bit, uncompressed BMP that opens in any Windows app, editor or legacy program that expects a raw bitmap.

What happens to PNG transparency?

BMP does not support transparency in practice, so transparent areas are placed on a white background during conversion.

Will the BMP be larger than the PNG?

Usually yes. BMP is uncompressed, so it is normally several times larger than the original PNG. That is expected for a raw bitmap.

Is my image uploaded?

No. The PNG is decoded and the BMP is written entirely in your browser, so your image never leaves your device.