BMP to PNG Converter
Convert uncompressed Windows Bitmap (BMP) images into compressed PNG files.
How to Use
Upload BMP
Select a .bmp file.
Compress
Re-encode Bitmap array to PNG DEFLATE container.
Download PNG
Save compressed PNG file.
Convert Uncompressed Windows Bitmap (BMP) to PNG
Windows Bitmap (.BMP) files store raw, uncompressed pixel arrays, producing multi-megabyte files for basic graphics. Converting BMP images to PNG applies DEFLATE compression, shrinking file sizes by 70% to 90% while keeping 100% lossless visual quality.
Convert legacy BMP files to PNG locally in your web browser tab without server uploads.
Real-World Examples & Use Cases
Legacy Windows Graphic Optimization
Compress large BMP screenshots and MS Paint graphics into web-friendly PNG files.
Industrial & Medical Imaging Workflows
Convert raw BMP scanner and microscope outputs into lossless PNGs for compact storage.
Email Attachment Size Reduction
Shrink multi-megabyte BMP files into lightweight PNG attachments.
Private Document Privacy
Convert sensitive BMP scans with 100% offline browser security.
How It Works
BMP Pixel Array -> Canvas -> PNG DEFLATE Compression
Frequently Asked Questions
Why are BMP files so large compared to PNG files?▼
Is converting BMP to PNG lossless?▼
Are my BMP files uploaded to a server?▼
How much space will I save by converting BMP to PNG?▼
Can I view PNG files on any device?▼
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