Convert images into lossless PNG output.
PNG Converter transforms images from JPG, WEBP, AVIF, or GIF into lossless PNG output, preserving every pixel of detail. It is free, runs entirely in your browser, and requires no login or software installation.
PNG Converter is a browser-based tool that re-encodes uploaded images into the Portable Network Graphics format. PNG uses lossless compression, meaning the output retains full pixel-level accuracy with no quality degradation -- ideal when you need transparency support or artifact-free graphics. The conversion happens locally using your browser's canvas API, so your files are never uploaded to a server. The result is a standards-compliant PNG file ready for web use, design projects, or archival storage.
Upload a source image in any browser-supported format through the file input. The image loads onto a preview canvas where you can verify it before converting. Adjust the quality slider to control the PNG compression level -- higher values produce smaller files with slightly slower encoding, though the output remains lossless regardless. Click Convert to process the image, then click Download PNG to save the result to your device. The entire workflow takes seconds for typical web-sized images.