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Convert BMP to PNG Free, Right in Your Browser

Turn BMP files into PNG without losing a pixel. Many at once, free, no sign-up, and nothing is uploaded.

Your files are 100% private. Processed in your browser — never uploaded.

Need help? Check our guide

80%

Lower quality = smaller size

Advanced (optional)

Watermark & server-side metadata control are available on Pro.

Pro Tip

WebP gives you the best quality at smaller file sizes. Perfect for websites and faster loading.

Quick answer

BatchSet converts BMP to PNG free and entirely in the browser, with no upload and no sign-up. PNG is lossless, so every pixel of the BMP survives while the file usually shrinks to a fraction of the size. PNG suits screenshots, logos and line art; JPG suits photographs. Many BMP files convert at once with a ZIP download.

How to use the BMP to PNG

Three quick steps — free, private, right in your browser.

1

Add your BMP files

Drop one or many .bmp files, or click to pick them.

2

Convert

PNG is lossless, so there is no quality setting to get wrong.

3

Download

Save them one by one or as a ZIP. Nothing was uploaded.

Features

  • Lossless: every pixel is kept
  • Usually far smaller than the BMP
  • Many BMP files at once, ZIP download
  • Keeps the pixel size
  • Runs in your browser, nothing uploaded
  • Free, no sign-up

Use Cases

  • Keep a screenshot sharp but smaller
  • Put an old BMP on a website
  • Archive scans without losing detail
  • Convert a folder of BMP files

Frequently asked questions

Is anything lost going from BMP to PNG?+

No. Both store exact pixels, so the PNG holds the same picture. PNG just compresses it, usually to a fraction of the BMP's size.

PNG or JPG for a BMP?+

PNG for screenshots, logos, line art or anything with sharp edges and flat colour, and when you need transparency. JPG for photographs, where it makes a much smaller file and the loss is hard to see.

Is it free?+

Yes. The browser decodes the BMP and writes the PNG itself, so there is no account, no watermark and no upload.

Can I convert a folder of BMP files?+

Yes. Add them all and download a ZIP.

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