Gradient Generator is a free in-browser tool by Josh W. Comeau that helps developers craft CSS gradients without the muddy gray middle that plagues naive RGB interpolation. You add color stops, then pick an interpolation mode (HSL, LCH, Oklch, etc.) and the tool produces a gradient that stays vivid across its entire length, with a copy-ready background-image snippet.

It sits inside Josh's personal blog at joshwcomeau.com, alongside his other educational tools and articles on CSS and animation. The generator is fully free, requires no signup, and runs entirely in the browser.