Why Use This Tool?
BMP is the old Windows standby — simple, dependable, and enormous. It stores pixels raw, with no compression, so a screenshot can easily weigh more than a song. PNG keeps every single pixel too, but squeezes the file down and adds support for transparency along the way.
Because BMP decoding is built into every browser, this conversion is instant. Nothing is uploaded, nothing is queued, and you can drop in a whole batch of legacy files from an old project folder at once.
How It Works
- Drop your BMP file. Grab one or a whole batch from your old folders.
- Wait a blink. BMP decoding is native to your browser, so there's nothing to load.
- Download the PNG. Same pixels, friendlier format, much smaller file.
Frequently Asked Questions
Is PNG quality better than BMP?
The pixels stay identical — PNG is lossless. What changes is the file size, which usually drops by 70 to 90 percent, plus PNG adds transparency support BMP never had.
Why are BMP files so large?
BMP stores every pixel as raw data with little or no compression. PNG applies smart lossless compression, so the image looks the same while the file shrinks.
Will the PNG look exactly the same?
Yes. Lossless means lossless. Every pixel arrives exactly as it left, including any transparent areas.
Tips & Things to Watch
- PNG supports transparency, so logos keep their see-through backgrounds.
- Perfect for archiving old screenshots without the megabyte-sized bloat.
- Keep the BMP original if some ancient in-house app still demands it.