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How to convert PNG to BMP

Transform your PNG images into BMP in seconds. Everything runs in your browser — no file ever leaves your device.

4 min readUpdated on April 25, 2026

You want a smaller file, are publishing to the web (use WebP/AVIF), or sending via email with a size cap. Mandatory compatibility with a legacy system that only accepts BMP.

What is PNG?

A lossless-compressed image format created in 1996 as a free alternative to GIF. Supports per-pixel transparency through an alpha channel, keeps exact quality, and is the standard for graphics, icons, screenshots, and any image with text or flat color areas.

  • Images with transparency (logos, icons)
  • Screenshots and screen captures
  • Graphics, diagrams, infographics with text
  • Material that will be edited multiple times (quality preserved)

Why convert to BMP

Windows-native bitmap format, uncompressed (or minimally so). Each pixel is stored individually, producing huge files. Obsolete for web and mobile today, still shows up in some Windows workflows and legacy devices.

  • Compatibility with old Windows applications
  • Very old print pipelines that require BMP
  • Cases where you need exact pixels with zero compression
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Step-by-step: convert your image

1. Upload the file

Drag your PNG file into the upload area, or click to select it from your computer. You can upload several files at once — they'll be converted in batch.

2. Check the quality setting

BMP has adjustable quality in most cases. Leave it at 85-90% for the best size/quality balance. For professional material, bump it to 95-100%.

3. Click convert and download

Processing is near-instant (seconds per image) because it happens right in your browser. When it's done, download each file individually or all together as a ZIP.

PNG vs BMP: technical comparison

Before converting, it's worth understanding what each format brings to the table:

PNG — best for:

  • Images with transparency (logos, icons)
  • Screenshots and screen captures
  • Graphics, diagrams, infographics with text
  • Material that will be edited multiple times (quality preserved)

PNG — limitations:

  • Files significantly larger than JPG or WebP
  • Not ideal for photos (less efficient compression)
  • No animation support (use APNG or GIF)

BMP — best for:

  • Compatibility with old Windows applications
  • Very old print pipelines that require BMP
  • Cases where you need exact pixels with zero compression

BMP — limitations:

  • Massive file size (10-50× larger than JPG)
  • No transparency support by default
  • Inefficient for anything modern
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When converting from PNG to BMP makes sense

Typical scenarios where this conversion solves a real problem:

  • Images with transparency (logos, icons)
  • Screenshots and screen captures
  • Compatibility with old Windows applications
  • Very old print pipelines that require BMP

Frequently asked questions

Quality depends on both formats. For conversions between modern formats with similar quality (PNG → WebP, for example), the visual loss is imperceptible. For conversions to lossy formats (anything → JPG), quality depends on the level you pick — 85-90% is practically indistinguishable from the original.