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BMP to PNG

Convert BMP images to PNG for free, with no quality lost. Many at once, with no upload.

Files stay on your device

Drop images to convert them to PNG

Add one or as many as you like. They're converted on your device, so nothing is uploaded.

PNG, JPG, WebP, HEIC, AVIF, SVG, BMP, and GIF. As many as you like, or a whole folder.

Convert to
Keeps every pixel and any transparency. Photos come out large.
Format

How to convert BMP to PNG

Add BMP files from Paint, a scanner, or old software and download them as PNG, which keeps every pixel but takes far less space and opens everywhere. The converter runs in your browser, so the files stay on your device.

  1. Step 1

    Add your BMP files
    Pick one or many, or drop them in.

  2. Step 2

    Keep PNG
    PNG is selected, so nothing is lost.

  3. Step 3

    Download the PNGs
    Save each one, or all of them in a ZIP.

What to expect

Supported inputs
BMP files, and any other picture: PNG, JPG, WebP, HEIC, AVIF, SVG, BMP, ICO, or GIF.
What happens
Each picture is saved as a PNG at its full size, with every pixel the same and transparency kept.
Limits
A PNG of a photo is larger than a JPG; choose JPG for photos.

Private by design

Your images stay on your device

Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.

  • No upload
  • No signup
  • No watermark

Questions

Yes. PNG compresses without changing any pixel, so the picture is identical.

It depends on the picture: screenshots and drawings often shrink to a tenth, photos less.

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