Convert between PNG, JPEG, and WebP formats instantly.
Converting from lossless to lossy (PNG → JPEG) is a one-way trip — you discard data you can never recover. Before converting, ask: does this image need transparency? If yes, keep it PNG or use WebP with alpha. Will this image be edited again? If yes, keep it lossless as your master file and export a compressed version for distribution.
Converting from JPEG to PNG does NOT improve quality — it only increases file size. You cannot recover data that JPEG already discarded. JPEG→PNG is only useful when you need a lossless format for downstream processing (e.g., running OCR, compositing over a background) and don't mind the larger file size.
The best conversion path for web publishing: start with your original high-quality file (TIFF, RAW, PNG master), resize to display dimensions, then export as WebP for modern browsers with a JPEG fallback for older ones. Our Bulk Compressor handles batch format conversion and compression in one step.