Use oxipng -o 4 --strip all for PNGs. 🎵 Audio | Format | Tool | Command example | |--------|------|----------------| | FLAC | flac | flac --best input.wav | | ALAC | ffmpeg | ffmpeg -i input.wav -c alac output.m4a | | WavPack | wavpack | wavpack -h input.wav |

-8 for FLAC (slow but smallest). 🎥 Video Lossless video is rare due to huge sizes. Use only for archival or editing intermediates.