Is PNG smaller than BMP?

Yes. PNG uses lossless DEFLATE compression, making files significantly smaller than uncompressed BMPs.

Is my graphic sent to an external server?

No. Conversion processing happens 100% inside local browser memory.

No. PNG is a 100% lossless image format.

Yes. Batch conversion processes multiple BMP files in parallel.

Yes. PNG uses lossless DEFLATE compression, making files significantly smaller than uncompressed BMPs.

No. Conversion processing happens 100% inside local browser memory.

No. PNG is a 100% lossless image format.

Yes. Batch conversion processes multiple BMP files in parallel.

ImagesOffline Ready · Zero Uploads

Convert Windows Bitmap .bmp files into lossless .png graphics directly inside your web browser.

Drag & drop your files here, or click to browse

Supports .bmp up to 50MB.

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Convert WebP images to lossless PNG format in your browser memory. Preserves transparent alpha channels with zero server upload.