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Nothing to compare yet.
Every version here is real and ready. Tap one to keep it instead.
This page opens Pocketsize with the file type pinned to PNG. PNG is the format of screenshots, logos and interface art, and it can be compressed two honest ways: losslessly, where every pixel stays exactly as it was and only the byte count drops, or as “PNG — fewer colors”, which trades a reduced palette for a much smaller file.
Pick “identical — every pixel kept” and that promise is literal: the pixels that come out are the pixels that went in, verified, never resized. Anything less than identical is measured like every other result, with the score on screen and the difference view one key away.
Your pictures never leave your computer: the compression runs in your browser, on your own device, and you can verify that yourself in about a minute. After one visit it even works with no internet at all.
This page is Pocketsize with the plan pre-set for one job. Nothing is locked — change any control once it is open.
Yes. PNG transparency survives both paths — lossless and fewer-colors — untouched.
PNG files carry room for smarter internal encoding. Lossless compression repacks the same pixels in fewer bytes — like folding the same clothes into a smaller case.
Screenshots, diagrams and flat artwork often use only a handful of colors, so cutting the palette shrinks the file hard while looking the same. The comparison is on screen — judge it yourself before keeping anything.