Reduce image file size without any quality degradation. Re-encodes PNG with optimal compression settings.
Upload a PNG image
JAD optimizes compression without quality loss
Download the smaller file
Free is enough for most one-off jobs. Pro raises the file and batch caps; Pro + Media unlocks GB-scale streaming and unlimited duration.
Larger files supported on Developer (5 GB CSV) and Enterprise (unlimited). All processing happens in your browser — files never reach a server.
0 bytes uploaded. Lossless Image Compressor runs entirely in your browser using Canvas API and WASM. Your image stays on your device at all times. No data is sent to any server.
PNG and WebP support lossless compression. JPG is always lossy by nature.
Aggressively compress images with quality slider control. See file size reduction in real-time.
Open toolCompress images to a target file size in KB. Uses browser-image-compression for multi-threaded optimization.
Open toolConvert PNG images to WebP for smaller file sizes with no quality loss. Free, browser-based, no upload required.
Open tool