Convert BMP to PNG instantly

Convert BMP images to lossless PNG in your browser. No upload needed. Smaller files, same quality. Free and private.

Drop your BMP file here

or click to browse

Your files stay private
No server upload
Instant conversion

 

Example

Input (BMP)

[scan.bmp]
A 2480x3508 scanned document (A4 at 300 DPI)
File size: 24.9 MB

Output (PNG)

[scan.png]
Lossless PNG image
File size: 2.1 MB (same quality, 92% smaller)

About this converter

BMP files are uncompressed and enormous. PNG gives you lossless compression, which keeps every pixel identical while dramatically reducing file size. A 5.9 MB BMP screenshot might become 800 KB as PNG. No quality loss at all. This converter renders the BMP onto a Canvas element and exports PNG. The conversion runs entirely in your browser. Your image never leaves your device.

BMP vs PNG

Bitmap Image (BMP)

BMP (Bitmap) is an uncompressed raster image format commonly associated with Windows. Files are large because no compression is applied.

Common uses: legacy Windows applications and uncompressed images

Portable Network Graphics (PNG)

PNG (Portable Network Graphics) is a lossless image format that supports transparency, making it ideal for graphics, icons, and screenshots.

Common uses: screenshots, graphics with transparency, and lossless images

W3C PNG specification

How to convert BMP to PNG

  1. 1

    Upload

    Upload your BMP file using the drop zone above, or click to browse your device.

  2. 2

    Convert

    Click the "Convert to PNG" button. The conversion runs instantly in your browser.

  3. 3

    Download

    Download your converted PNG file. No data was sent to any server.

Frequently Asked Questions

Last updated: 2026-03-23