Ship images that are small and sharp.
Pick the right format, convert it cleanly, and get it small without wrecking it. The craft Image Alchemy pioneered in the 1990s, brought fully up to date for 2026 — real formats, real tools, no guesswork.
Answer four quick questions. You'll get one recommended format, a one-line why, a safe web fallback, and where to read more.
Start reading
Sixteen guides — the full index is in the sidebar.How to Convert Images in 2026
The quick web way, the desktop way, and the powerful way — from Squoosh to ImageMagick and ffmpeg.
Optimising Images for the Web
A pragmatic checklist for pages that load fast: modern format, right size, sensible compression, lazy-load.
Responsive Images: srcset and <picture>
Serve the right image to every screen with srcset, sizes, and the picture element for format fallbacks.
The Origin: Image Alchemy
The 1990s command-line pioneer this site is named for — from McMurdo Station to weather satellites.
Kept sharp by
The people and projects who keep Handmade honest — pixel-peepers, pipeline builders and format nerds who read every draft.










