Compress PNG

Mild compression is typically invisible to the eye; only aggressive size targets — say, squeezing a 2 MB screenshot down to 50 KB — may soften fine detail. You control the trade-off by choosing how tight a size target to set.

Yes — state a target such as 'under 200 KB' and the tool works toward that threshold, tuning the compression level to get as close as possible while keeping the image legible.

Transparency is preserved during compression. Alpha channels in logos, icons, and UI screenshots survive the process intact, so transparent backgrounds stay clean.

PNG uses lossless encoding, which records every pixel exactly — great for accuracy, but costly in bytes for photographs and dense screenshots. Compression strips redundant pixel patterns and metadata, often cutting size by 40–70% on typical screenshots.

Yes. Drop a folder of PNGs and every file is processed in a single pass, returning the full set of compressed images together — useful for optimising a whole web project at once.

It runs entirely in the browser as an online tool — no desktop app, plugin, or command-line setup needed. Upload your PNGs and download the compressed results directly from the page.