BMP to PNG converter
BMP files are uncompressed, so they are huge. Converting to PNG keeps every pixel and typically shrinks the file by 80 percent or more. Drop as many as you like.
Tooloat runs in your browser and needs JavaScript. It opens in a moment, and your files are processed on your device.
How it works
- Drop HEIC, WebP, AVIF, GIF or BMP files.
- Choose the output format, quality and maximum size.
- Download the results as a ZIP.
Why use it
- Lossless, much smaller.
- Bulk conversion.
- Transparency kept.
- Local processing.
Questions and answers
Does converting BMP to PNG lose quality?
No. PNG is lossless, so the pixels are identical.
Why are BMP files so big?
They store raw pixels without compression.
Related tools
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- BMP to JPG converterA BMP photo can be many megabytes.
- PNG to JPG converterConvert PNG images to compact JPG files.
- Compress images to a target sizeShrink photos and graphics for email, forms and websites.