PNG to BMP

Upload a PNG file and download it as BMP. Free to start.

Drop files here, or press Enter to choose them. Up to 50 MB per file.
Drop a PNG file hereFree · up to 50 MB · 10 operations in total without an account · or paste with Ctrl+V
  • Sent over HTTPS · link expires in 24 h

How it works

  1. Step 1:

    Drop the PNG file on the orange block above, or press “Choose PNG”.

  2. Step 2:

    Press “Convert to BMP”. The block shows the progress while the server converts the file.

  3. Step 3:

    Press “Download” to save the BMP file. On Free the link works for 24 hours.

How PNG to BMP conversion works

Portable Network Graphics (PNG) uses lossless DEFLATE compression and supports a full alpha-transparency channel, preserving every pixel exactly as encoded. Bitmap Image (BMP) stores uncompressed pixel data in a simple row-by-row grid, resulting in large file sizes but zero quality loss. This conversion changes the file's encoding, compression method, and supported feature set. Colour profiles and orientation metadata are preserved in the output. The result is a standard BMP file readable by any compatible application. 1converter handles PNG-to-BMP conversion server-side: files are uploaded over HTTPS, processed on isolated cloud infrastructure, and the converted output is available for download for 24 hours before automatic deletion. No account is required for standard conversions.

Sources and specifications

Quality levels for PNG → BMP

LevelFile sizeSpeed
Low qualitySmallest file, basic qualityVery smallVery fast
Medium qualityRecommendedBalanced size and qualityMediumFast
High qualityLarger file, great qualityLargeModerate
Maximum qualityLargest file, best possible qualityVery largeSlow

Image Tip: For photos, Medium quality offers the best balance. For graphics with text or sharp edges, use High or Maximum quality to preserve clarity.

When to convert

What the BMP file is good for and why people convert to it.

  • Ensures broad compatibility with older Windows imaging and printing software
  • Converts PNG pixel data into a standard BMP bitmap layout without compression artifacts
  • Preparing bitmaps for legacy printer drivers that only accept BMP
  • Uploading icons or screenshots to systems with strict BMP-only validation

Where your file goes

  • It travels to our server over an encrypted HTTPS connection and is converted there.
  • The BMP file comes back as a private link. It stops working after 24 hours on Free and 7 days on paid plans, and then the files are deleted.
  • Want the file to stay on your device? Private Mode converts images right in the browser. Open Private Mode

Questions and answers

What people ask before converting PNG to BMP.

Ask supportAll questions
Does converting PNG to BMP preserve transparency?
PNG can store an alpha channel, but standard BMP is typically opaque. If the BMP output doesn’t support alpha, transparent pixels become fully opaque (often with a default background).
Is PNG to BMP a lossless conversion?
Pixel data is preserved for the visible RGB channels, but BMP is usually uncompressed, so the file size changes. If your BMP variant supports limited formats, color depth conversion may reduce fidelity.
Why is the BMP file usually much larger than the PNG?
PNG uses compression for images, while BMP is commonly stored with little to no compression. That makes BMP significantly larger even when the image content is the same.
Will the BMP work everywhere?
BMP is widely supported by legacy Windows tools and many basic image viewers because it uses straightforward bitmap headers and scanlines. However, very specific BMP variants (bit depth/color masks) may still vary by application.

More about this pair

Many files at once? Starter converts 5 at a time, 100 a day.

See plans