Is converting BMP to PNG free?

Yes. ConvertBoy is free with no daily limit, no watermark and no sign-up.

Is there a file size limit?

No. Your own device does the work, so the only limit is your device's memory. Very large videos take longer on slower computers.

No. The conversion happens inside your browser. Your BMP files never leave your device, and nothing is kept after you close the tab.

Yes. It works in Safari on iPhone and Chrome on Android, as well as on any computer.

You choose the quality under Settings (85% by default) and can resize the picture. PNG and TIFF keep every pixel.

Convert BMP files to PNG for free. No size limit, no sign-up, nothing uploaded.

Choose your BMP files or drop them on this page. You can add as many as you like.
PNG is already selected. Press Convert, or Convert all for several files.
Press Download. With several files you can download them all as one ZIP.

BMP is an old uncompressed picture format from Windows. PNG is a sharp picture format that keeps transparent backgrounds.

Is converting BMP to PNG free?: Yes. ConvertBoy is free with no daily limit, no watermark and no sign-up.
Is there a file size limit?: No. Your own device does the work, so the only limit is your device's memory. Very large videos take longer on slower computers.
Are my files uploaded anywhere?: No. The conversion happens inside your browser. Your BMP files never leave your device, and nothing is kept after you close the tab.
Does it work on a phone?: Yes. It works in Safari on iPhone and Chrome on Android, as well as on any computer.
Will the picture lose quality?: You choose the quality under Settings (85% by default) and can resize the picture. PNG and TIFF keep every pixel.