or click to browse
Your file is compressed locally in your browser. It is never uploaded anywhere.
Shrink a PNG's file size while keeping its transparency intact. Drag the quality slider to trade off file size against visual quality, then compare the before/after size shown once it finishes.
Yes — the output stays a PNG, so any alpha transparency in your original file is preserved.
PNG uses lossless compression, so savings mainly come from the browser's re-encoding efficiency rather than discarding detail. For much smaller files, consider the JPEG Compressor if you don't need transparency.
Browsers largely ignore the quality parameter for PNG since it's a lossless format — the slider mainly matters for JPEG and WEBP output.
No, compression happens locally in your browser.