KromaStudio is a free, client-side visual studio for developers. Paste code → pick from 15 syntax themes → export HD PNG. Drop a screenshot → wrap in macOS/Windows browser frame. Animate with Float, 3D Tilt, or Auto Scroll → export looping .webm. Three modes: Code, Mockup, and Social post templates. No signup. No server uploads. Your code never leaves the browser. Built with Next.js, React, and Shiki. MIT Open Source.