Image Converter
Convert images between PNG, JPG, WebP, and AVIF formats instantly. Adjust quality for lossy formats, compare file sizes before and after, and download the result. No uploads — everything runs locally in your browser.
Drop an image here or click to browse
Supports PNG, JPG, WebP
Your images never leave your browser — everything is processed locally.
How it works
The converter re-encodes your image in the format you choose. For formats like JPG, WebP, and AVIF, you control the quality level — lower quality means smaller files, higher quality keeps more detail.
PNG is lossless, so no quality slider is shown for that format. WebP typically offers the best balance of quality and file size. AVIF support depends on your browser — if available, it often produces even smaller files than WebP at the same visual quality.
The before/after file size comparison helps you decide the right quality level. Lower quality means smaller files but more compression artifacts, while higher quality preserves detail at the cost of larger files.