Image Converter

Image Converter changes an image from one file format to another — between PNG, JPEG, WebP, and AVIF — without any desktop editor. Different formats suit different needs: JPEG and AVIF excel at photographs, PNG preserves transparency and sharp graphics losslessly, and WebP and AVIF offer modern compression that is far more efficient than legacy JPEG. Conversion happens client-side in your browser, so your images stay private.

The converter decodes the source image into raw pixel data and then re-encodes it using the target format's codec. Converting from a lossy source like JPEG to a lossless one like PNG cannot recover detail that was already discarded, but it will stop further generational loss; going the other way, from PNG to WebP or AVIF, trades a small, often invisible quality reduction for a much smaller file. Transparency is preserved when both source and target support an alpha channel — PNG, WebP, and AVIF do, while baseline JPEG does not and will fill transparent areas with a solid background.

Typical uses include modernizing an asset pipeline by converting PNG and JPEG assets to WebP or AVIF for the web, producing PNGs for tools that require lossless input, or generating a JPEG copy of a screenshot for broad compatibility. It works well alongside the Image Compressor for fine-grained size control and the Metadata Stripper if you want a clean copy free of embedded EXIF data. For icons and logos with flat color, PNG or lossless WebP keeps edges crisp.

Practical tips: convert to AVIF or WebP for web delivery and keep a PNG master for archival or further editing. When converting away from PNG transparency to JPEG, expect the background to become opaque, so pick a matte color intentionally. Check browser and platform support before standardizing on AVIF, since a few older environments still lack it, and avoid round-tripping through lossy formats repeatedly to prevent compounding quality loss.