Drop a PNG file below and this tool re-encodes it to a smaller size instantly, entirely inside your browser — no upload, no install, no sign-up. PNG uses lossless compression, which preserves every pixel exactly — ideal for screenshots, logos, and graphics with sharp edges or transparency, but it produces larger files than lossy formats for photographic content.
PNG has no lossy quality knob, so this tool re-encodes it losslessly — this can still shave off bytes if the original file wasn't optimally compressed, but reductions are typically small. If you need a much smaller file and can accept some quality loss, compressing as JPG or WEBP instead will usually shrink it far more than any lossless re-encode. Typical size reduction with this tool: 0-20%, depending on the image and, for lossy formats, the quality setting you choose.