Convert PNG to BMP

Convert PNG to BMP online in bulk, right in your browser — free PNG to BMP converter.

Images

About

About the PNG to BMP Converter

Upload one or more PNG images and get uncompressed BMP files back instantly — some older software, embedded systems and hardware tools still expect the plain BMP format rather than a compressed one, even though the source PNG is already lossless.

BMP output is 24-bit and uncompressed, so a PNG of a few hundred kilobytes can become several megabytes — a 512×512 image always comes out at about 768 KB, whatever it shows. Transparent areas turn black because BMP has no alpha channel here, so flatten the image onto white first if that matters.

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Guide

Using the PNG to BMP Converter

  1. 1

    Step 1

    Click the upload area and choose one or more PNG images — add as many as you like.

  2. 2

    Step 2

    "Convert from" is preset to PNG and "Convert to" to BMP below.

  3. 3

    Step 3

    Click Convert — BMP output ignores the quality setting since it's written byte-by-byte with no compression.

  4. 4

    Step 4

    Save each converted image with its own Download button.

  • Writes 24-bit uncompressed BMP files that older software can open
  • Transparent areas become black, since this BMP has no alpha channel
  • Keeps the original width and height
  • Convert as many images as you like in one batch, each with its own Download button
  • Shows each file's size before and after
  • Runs in your browser — free, nothing uploaded and no watermark

Electronics hobbyists

Makers prepare graphics for microcontroller displays that load BMP.

Legacy software users

Users of older Windows programs get a format they accept.

Image-processing students

Students get simple uncompressed files to parse in their own code.

Game modders

Modders produce textures for older games that expect BMP.

Popular conversions

JPG PNG JPG WebP JPG BMP PNG JPG PNG WebP WebP JPG WebP PNG WebP BMP BMP JPG BMP PNG BMP WebP

Examples

PNG to BMP examples

3 worked examples

01

A transparent PNG converted

A 512×512 PNG logo with a transparent background converts to a 768 KB BMP with the transparent areas turned black, since standard BMP has no transparency channel.

02

File size jump

A 1440×900 screenshot.png of 105 KB becomes a 3.71 MB BMP, because BMP stores three bytes for every pixel with no compression.

03

Batch converting several files

Uploading three PNGs at once (a logo, a screenshot and a photo, 3.26 MB in total) converts all three to BMP — 9.95 MB in total — each with its own Download button.

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FAQ

Frequently asked questions

Quick answers to common questions about the PNG to BMP Converter.

How do I convert PNG to BMP?

Upload your PNG image(s) above — the format is already preset to PNG to BMP — then click Convert. Each file converts entirely in your browser.

Is this PNG to BMP converter free?

Yes. It's free, with no sign-up and no limit on how many images you convert.

What happens to transparency when converting PNG to BMP?

Standard BMP has no transparency channel, so any transparent areas in your PNG turn black in the converted file.

Will the BMP be much larger than the original PNG?

Yes, typically — BMP stores every pixel with no compression, while PNG already compresses losslessly, so BMP files usually end up noticeably larger.

Are my images uploaded to a server?

No. BMP files are written directly in your browser byte-by-byte, with no library needed — your images never leave your device.

Can I convert BMP back to PNG?

Yes — use the dedicated BMP to PNG converter page, or just swap the format dropdowns here.

What kind of BMP does it create?

An uncompressed 24-bit BMP with no alpha channel — the variant almost every BMP-reading program supports.

Is the image resized or recoloured?

No. Every pixel is copied across at the original width and height. Only transparent pixels change, because BMP can't store transparency — they turn black.

How do I get a white background instead of black?

Open the PNG in an image editor, add a white layer underneath the image and save it, then convert that version. The transparent areas will already be white, so they stay white in the BMP.

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