PNG Compress · Keep transparency
For screenshots, icons and UI assets; lossy and lossless modes, full transparency preserved, batch a whole set.
Drop files here
or click to choose files
PNG Compress · What it does
PNG has two uses: transparent icons/screenshots use lossless mode (only redundant metadata is removed, pixels unchanged); non-transparent photo PNGs can use lossy mode to 8-bit indexed color or JPG, cutting 70%+. Both modes are on one page with live before/after.
Four steps, no tutorial needed
Drop in, click once, download—no sign-up, no waiting
Add Images
Drag and drop or click to choose images—multiple at once, or import a whole folder.
Set Options
Adjust the options below as needed and preview live.
Start Processing
Click start and wait for the progress bar to finish.
Download & Save
Download individually or as a ZIP—the server keeps nothing.
FAQ
Is lossless truly lossless?
Yes. Lossless only cleans redundant data and optimizes encoding—pixels and alpha unchanged.
Does lossy mode drop transparency?
No—alpha is always kept; lossy only affects color quantization.
Why does PNG→JPG turn the background black?
JPG has no transparency and fills it black—keep PNG instead.