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Part of:Image Formats Explained: JPG, PNG, WebP, AVIF and More

BMP to PNG Converter

Convert BMP to lossless PNG in your browser with far smaller files and no quality loss. Batch ready private and free for legacy assets.

  • No file limits
  • No registration
  • Free forever
  • Images never leave your browser
BMPPNG
Bulk uploadTurn on to pick several images at once

Drop images here

or paste from clipboard (Ctrl/⌘ + V)

Supported formats: JPG, PNG, WebP, AVIF, SVG

Processing…

Your images never leave your browser

All processing happens locally on your device. Nothing is uploaded to a server, stored, or tracked.

Move uncompressed BMP scans and legacy assets into lossless PNG, identical pixels at a fraction of the file size. PNG compresses BMP losslessly by an order of magnitude.

How it works

Why convert BMP to PNG?

Move uncompressed BMP scans and legacy assets into lossless PNG, identical pixels at a fraction of the file size. PNG compresses BMP losslessly by an order of magnitude.

How PNG compares to BMP

PNG is generally similar in nature to BMP. The main differences are file size, quality characteristics, and transparency support.

Quality recommendations

For PNG output, start at the lossless preset and adjust to taste. A lower quality setting shrinks the file further; a higher one keeps more detail. Keep the original BMP file for archival edits.

Is conversion private?

Your BMP is decoded and saved as lossless PNG in your browser. No upload, no storage.

Batch convert BMP to PNG

Convert a folder of BMP files to lossless PNGs in one pass. Free, private, batch ZIP, and processed locally in your browser.

Frequently asked questions

Is BMP to PNG lossless?

Yes. PNG preserves every pixel of the BMP losslessly, usually with a much smaller file, so it is ideal for archiving.

How much smaller is PNG than BMP

BMP is uncompressed, PNG is compressed losslessly. Screenshots and scans often shrink 50 to 80 percent without any loss. You can further compress PNG if needed.

Can I batch convert many BMP files without uploading

Yes. Add your BMP folder, convert together to lossless PNG, and download a ZIP. All processing happens locally in your browser.