Convert and optimize your pictures JPEG/PNG/WEBP to smaller JPEG XL files (up to 10-60%)! Optimizer for JPEG XL (*.jxl) files (10-15% smaller) in lossless mode. JPEG XL (.jxl) is the next-generation, general-purpose image compression codec by the JPEG committee. It was based on Google’s Pik proposal and Cloudinary’s FUIF proposal (which itself was based on FLIF). High compression ratio – better than your programs / photo camera or smartphone. Lossless JPEG transcoding – about 20% smaller. JPEG XL is a modern image format that provides superior lossy and lossless compression for images. Using JXL, webmasters and web developers can create smaller, richer images that make the web faster. It uses program cjxl.exe. Batch processing of files (drag-n-drop). Program optimizes your file to new one with «_optimized» name ending (source file will remain intact). Reduce the size of your image files in one click with ot without quality loss! JPEG XL images are 60% smaller in size compared to JPEG and 35% to PNG.