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BMP to PNG Converter

Convert BMP images to PNG right in your browser — nothing is uploaded. PNG keeps every pixel of the bitmap exactly while making the file much smaller.

By Aditya Kr Sharma Files stay on your device

  • Free
  • Instant
  • No sign-up

Convert

Or import from
Supports: JPGJPEGJFIFPNG
+3 more WEBPGIFBMP

Nothing is uploaded. This tool runs entirely in your browser, so the file never leaves your device. There is no server to send it to, no copy kept anywhere, and it keeps working if you lose your connection after the page has loaded.

Accepts .jpg .jpeg .jfif .png .webp .gif .bmp You get: A .png file Free, no sign-up

How to convert

  1. Add your files Drag them in, choose files, or use the camera.
  2. Check the settings The defaults suit most files.
  3. Download Save one file, or all of them as a ZIP.

How to convert BMP to PNG

  1. Drop your BMP files on the box above, or click it to choose them (up to 30 at once).
  2. Press Convert. Each file is processed on your device and shows its old and new size.
  3. Download the files one by one or take them all as a ZIP.

What changes when you convert BMP to PNG

  • Every decoded pixel is written exactly — PNG is lossless here.
  • BMP images have no transparency, so there is nothing to lose there.
  • Camera details and GPS location (EXIF) are not copied into the new file. Photo orientation is applied to the pixels first, so the result is the right way up.

About BMP and PNG files

BMP is the old Windows bitmap format. It stores every pixel uncompressed, so files are very large, but almost any program — including very old ones — can read it.

PNG is lossless: every pixel is stored exactly, and it supports full transparency. Photos come out large; screenshots, logos and graphics with flat colour stay small. It is a good choice for screenshots, logos, graphics with text, and anything that needs a transparent background.

Limits

Up to 30 files of 25 MB each per batch and images up to 50 megapixels — beyond that browsers run out of memory, so the tool says so instead of producing a broken file. Files that are not images, or are damaged, are rejected with the reason.

Frequently asked questions

Are my images uploaded anywhere?

No. The conversion runs in your browser on your own device, and this page has no upload endpoint. Once the page has loaded it keeps working offline.

Is BMP to PNG lossless?

Yes, for the pixels: PNG stores every decoded pixel exactly. It cannot restore detail already lost in the BMP file.

Why is the PNG bigger than the original?

PNG is lossless. A photo that was stored lossily keeps all its pixels as PNG, which takes more space; screenshots and graphics with flat colour usually stay small.

What happens to transparency?

BMP has no transparency, so the result is fully opaque.

How many files can I convert at once?

Up to 30 files of 25 MB each per batch, and images up to 50 megapixels. Convert them together and download each one, or take them all as a ZIP.

TXT to PNGJPG to PNGBMP to JPGBMP to WebPBMP to GIFBMP to PDF

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