Private browser tool

Convert PNG to BMP

Turn a PNG into a 32-bit BMP bitmap for Windows-compatible or legacy software workflows.

BMP Choose a PNG image or drag and drop it here

One PNG image at a time

Output format: BMP

Resize (optional)

WidthHeight

Lock aspect ratio Do not enlarge the image

Output filename

The BMP is newly encoded without the source metadata.

PNG conversion guide

How to convert PNG to BMP

Choose a PNG, optionally resize it, and download a newly encoded BMP created in your browser.

Select an image from your device or drag it into the upload area.

Resize the image if you need different output dimensions.

Review the preview and file size, then save the converted image.

This free online PNG to BMP converter includes the following controls and output tools:

Private browser conversion. The image is processed locally and is not uploaded.
Custom dimensions. Set an exact width and height, lock the aspect ratio, and prevent accidental enlargement.
Lossless output encoding. The visible decoded pixels are written without an additional lossy quality setting.
Before-and-after preview. Review the original and converted image, output dimensions, format, and file size.
File-size comparison. See the original and converted sizes and the percentage change.
Custom filename. Rename the converted file before downloading it.
Metadata-free export. The newly encoded BMP does not copy source metadata.

BMP may be needed by older Windows applications and systems that require bitmap input.

PNG is usually much smaller and more portable, so keep it unless BMP compatibility is specifically required.

The 32-bit BMP includes alpha bytes, but transparency support varies across BMP-reading software.

The BMP is uncompressed and may be very large. A PNG copy is used only for the on-page preview.

Is this PNG to BMP converter free?

Yes. Convert one PNG at a time.

Will transparency remain?

Alpha bytes are included, but some BMP software ignores them.

Why is BMP much larger?

It stores uncompressed 32-bit pixel data.

Why does the preview use PNG?

Browsers do not display all BMP variants consistently.

Is my PNG uploaded?

No. Conversion happens locally.

Use the full converter for HEIC, PNG, WebP, JPG, GIF, TIFF, BMP, AVIF, and more.