Compress PNG Images Online with Pixel-Perfect Precision
Compress PNG images losslessly or using palette quantization in browser memory. Preserves full alpha transparency without uploading files.
Optimizing PNG assets without discarding alpha transparency or crisp lines
Portable Network Graphics (PNG) rely on DEFLATE filter algorithms to compress lossless visual layers. Large screenshots, UI graphics, and digital illustrations frequently accumulate excessive file sizes due to unoptimized filter strategies and uncompressed metadata chunks. Zapixal executes C/C++ WebAssembly binaries directly inside browser RAM, re-evaluating PNG filter lines and entropy blocks to reduce byte payload without sacrificing single-pixel accuracy or alpha transparency.
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Why use Zapixal
Simple, fast tools designed for your everyday file tasks.
Processed in your browser.
No account or software installation required.
Images, PDFs, and useful developer tools in one place.