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BMP to PNG Converter

Compress raw Windows Bitmap pixel arrays into lossless PNG format with zero visual degradation or artifacting.





or drag & drop your BMP (.bmp) files here
🔒 100% In-Browser • Zero Files Uploaded to Cloud

Switch output to:

PNG

JPG

WEBP

GIF

SVG

HEIC

PDF

ICO

TIFF

⇄ Swap (PNG to BMP)

How to Convert BMP to PNG in 3 Simple Steps

1

Select or Drop Your BMP Files

Drag and drop your .bmp image files into the upload box above, or click 'Choose Files' to select one or multiple files from your device.

2

Instant In-Browser Conversion to PNG

Our local engine converts your BMP files into PNG format instantly using client-side Canvas and binary encoders. No server queues or wait times.

3

Download Converted PNG Files

Download each converted file with one click, or click 'Download All (.zip)' to save your entire batch in a single organized archive.

BMP vs PNG Technical Comparison Matrix

Feature BMP (.bmp) PNG (.png)
MIME Type image/bmp image/png
Compression Lossless Lossless
Alpha Transparency ✅ Supported ✅ Supported
Ideal Use Case Device-Independent Windows Bitmap storing uncompressed raw pixel arrays in BGR/BGRA structure. Portable Network Graphics with lossless 24-bit/32-bit color and full alpha transparency.

Why Convert from BMP to PNG?

Huge File Size Reduction

Compress heavy uncompressed BMP bitmaps into ultra-efficient PNG files with up to 90% byte savings.

Fast Web & Email Sharing

BMP files are rarely accepted on modern social networks or web CMS platforms; converted files upload in milliseconds.

Modern Codec Efficiency

Benefit from advanced compression algorithms engineered for today's high-speed web and mobile devices.

Frequently Asked Questions

Why are BMP files so large compared to modern image formats?
▾
BMP files store every pixel in an uncompressed 24-bit or 32-bit linear grid without compression algorithms. Modern formats like JPG, PNG, and WEBP use advanced lossless or lossy compression to reduce size dramatically.

Is this BMP to PNG converter completely free to use?
▾
Yes, 100% free with no hidden subscriptions, credit systems, daily conversion quotas, or account sign-up requirements. You can convert unlimited files anytime.

Are my uploaded images safe and private?
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Absolutely. This tool operates 100% client-side inside your web browser. Your images are never transmitted over the internet, never uploaded to external servers, and never stored or seen by anyone.

Can I convert multiple BMP files at the same time?
▾
Yes! Batch conversion is fully supported. You can upload dozens of files at once, monitor real-time conversion progress for each item, and download all converted files together as a single .zip archive.

Does this converter work on mobile phones and tablets?
▾
Yes, the converter is fully responsive and functions smoothly on iOS (iPhone/iPad), Android devices, Mac, Windows, Linux, and Chromebooks using any modern browser.