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QuickImageTool

Convert BMP to PNGOnline Free

Change BMP images to PNG in seconds, one or many at once, at full resolution and without uploading anything.

  • Files stay on your device
  • No sign-up
  • Free, no watermark

About this tool

BMP to PNG Converter

Convert BMP to PNG right in your browser. BMP is an old, uncompressed Windows format with very large files, while PNG is a lossless format that keeps transparency, with larger files. BMP files are uncompressed and huge. PNG keeps every pixel exactly the same but is usually many times smaller, and every app and website opens it.

Add one picture or a whole batch. Each one is converted at its original size, and you can download them one by one or all together as a ZIP. PNG is lossless, so nothing changes in the picture, only the file size.

Everything happens on your phone or computer, so your images are never uploaded to a server. There's no sign-up, no limit and no watermark.

  • Batch conversion

    Convert many images at once and download them together as a ZIP.

  • Full resolution

    Width and height stay exactly the same as the original.

  • No quality loss

    PNG keeps every pixel of the converted image.

  • Private

    Converted on your device. Nothing is uploaded.

Step by step

How to convert BMP to PNG

  1. 1

    Add your BMP files

    Choose files from your phone or computer, drag them in, or paste an image.

  2. 2

    PNG is already selected

    There's nothing to set: conversion starts right away.

  3. 3

    Download

    Save each PNG, or download them all at once as a ZIP.

FAQ

BMP to PNG FAQ

Can't find your answer? Contact us.

Add your BMP images on this page. PNG is already selected, so each file is converted straight away; then download it, or download all of them as a ZIP.

No. PNG is lossless, so the converted image keeps the same high quality (HD stays HD) and looks exactly like the original. It can't add back detail a compressed original already lost, though.

Yes. Select or drop as many images as you like. They're converted one after another and you can download them together as a ZIP file.

No. Converting keeps the picture exactly as it is, and a JPG or BMP has no transparent areas, so the background stays. To get a transparent PNG, remove the background first with the Background Remover.

No. Conversion happens in your browser on your own device. Your images are never sent to a server.

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