Convert BMP to PNG
BMP files are essentially raw pixels — which is why a modest screenshot can weigh tens of megabytes. Converting to PNG keeps every pixel exactly (both formats are lossless) while shrinking the file dramatically.
This is the rare conversion with no quality tradeoff at all: PNG stores the identical image data, just compressed. The converter runs locally with PNG preselected.
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This is Convert Image Format preconfigured for this task — open the full tool for every option.
How it works
Select one or more images.
Choose the target format; consequences (like losing transparency in JPEG) are shown before converting.
Pick a background color if converting transparency to JPEG.
Convert and download individually or as a ZIP.
What the tool does
- PNG, JPEG, and WebP output
- Batch conversion with per-file success/failure isolation
- Explicit background selection when alpha meets JPEG
- Quality control for lossy targets
- ZIP download with deterministic file naming
How the result is verified
Every output is re-decoded to confirm it parses as the target format with the expected dimensions; failures are isolated per file.
Frequently asked questions
Do I lose any quality going BMP to PNG?
None. Both formats are lossless; PNG simply compresses the same pixel data. The conversion is exactly reversible in visual terms.
Why are BMP files so huge?
BMP typically stores every pixel uncompressed — three or four bytes each. PNG applies lossless compression, which routinely cuts 80–95% of the size for screenshots and graphics.