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PNG to BMP Converter

Convert PNG images to BMP right in your browser, one file or a whole batch. BMP has no transparency, so you pick the colour that fills transparent areas.

  • Free, no sign-up
  • Files never leave your device
  • Batch processing
  • No watermark
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Your files are processed on this device and are never uploaded to a server.

What happens when you convert PNG to BMP

CompressionLossless → Lossless
File sizeUsually larger for photos
TransparencyNot supported: transparent areas get the background colour you pick (white by default)
MetadataEXIF, GPS location and camera data are not copied to the new file
Opens inWindows and almost every desktop program, but not most websites

Sizes are typical values; your files will vary with content and settings.

PNG

PNG Portable Network Graphics

PNG stores pixels with lossless DEFLATE compression and a full 8-bit alpha channel. It is the safe default for screenshots, logos, UI assets and anything with sharp edges or text, because every pixel survives exactly as drawn.

PNG converter
BMP

BMP Windows Bitmap

BMP is the uncompressed bitmap format native to Windows. Files are large because each pixel is stored raw, but almost every program, embedded device and legacy system can read it.

BMP converter

How to use the PNG to BMP Converter

  1. 1

    Click Choose files or drop your PNG images onto the page.

  2. 2

    Adjust the BMP options if needed. The defaults work well for most images.

  3. 3

    Click Convert, then download each BMP or all of them as a ZIP.

Why convert PNG to BMP?

PNG files usually come from screenshots, design tools and image downloads, where lossless storage keeps edges crisp. Photographs saved as PNG are often 3 to 10 times larger than the same photo as JPG or WebP. Choose BMP only when a legacy program or device needs uncompressed bitmaps.

PNG to BMP settings

Pick a background colour to replace transparent areas. You can also cap the width and height, which resizes large photos in the same step.

Frequently asked questions

Will the BMP lose quality?

No. Both formats are lossless, so every pixel or sample in your PNG is kept exactly.

Is transparency kept when converting PNG to BMP?

BMP cannot store transparency, so transparent areas are filled with a solid colour. White is used by default; you can pick any background colour in the options before converting.

Will the BMP be smaller than the PNG?

No, usually larger for photos: as a rough guide, the BMP comes out at around 2.7× the size of the PNG, depending on the quality setting.

Questions about privacy, file-size limits or conversion speed are answered in the general FAQ.