Convert BMP bitmap images to compressed PNG format. 70–90% smaller files with zero quality loss. Free, no sign-up.
Drag & Drop Files
Converts to PNG · Max 10MB per file
1.2 TB
Bandwidth Saved Today
0.4s
Avg Process Time
99.9%
Compression Fidelity
Auto-purge after 60m. Zero logs. Fully encrypted processing.
Advanced alpha-channel preservation for UI designers.
Jump straight into processing without the sign-up friction.
Knowledge Base
BMP files are uncompressed and very large. Converting to PNG reduces file size significantly through lossless compression while maintaining identical visual quality.
PNG files are typically 60-80% smaller than BMP for the same image. Compression ratio depends on image content — solid colors compress more than photos.
No. Both BMP and PNG store pixel data losslessly. Converting between them is a lossless operation with zero quality loss guaranteed.
BMP is a legacy Windows format that stores raw uncompressed pixel data. It is mainly used in legacy applications. PNG is a better modern alternative.