Does The Designer's Knife work offline?
Yes. The Designer's Knife is a single HTML file that runs entirely in your browser. No internet connection required after download. Your data never leaves your device.
Nine design tools plus a live showroom — offline and always ready
The Designer's Knife puts nine essential design utilities plus a live preview Showroom into a single HTML file. Convert between color formats, check WCAG contrast compliance, build harmonious palettes, generate CSS gradients (linear, radial, conic), edit Bézier curves visually, build typographic scales from modular ratios, calculate spacing systems (linear, powers, Fibonacci), paint pixel art on a grid, and preview everything together in the Showroom — a live component gallery that renders your design system as buttons, cards, and typography in real time. All offline, all private, all yours forever.
Full documentation with detailed instructions for every tool.
The file works in any modern browser — Chrome, Firefox, Safari, Edge. Save it to a USB drive, email it to yourself, or keep it in your cloud storage. It will work anywhere, anytime, forever.
Sovereignty as a Service
Yes. The Designer's Knife is a single HTML file that runs entirely in your browser. No internet connection required after download. Your data never leaves your device.
No. The Designer's Knife is a one-time purchase of $39. No monthly fees, no renewals, no price increases.
The Designer's Knife bundles 9 design & creative tools into a single HTML file: Color Converter (HEX/RGB/HSL), WCAG Contrast Checker, Palette Builder, Gradient Generator, Bézier Curve Editor, Type Scale Builder, and 3 more.
Entirely in your browser's local storage. Nothing is uploaded, transmitted, or tracked. You can export your data as JSON at any time and import it on another device.
Any modern browser — Chrome, Firefox, Safari, Edge — on Windows, macOS, Linux, ChromeOS, iOS, or Android. The same file works everywhere.
Yes. The interactive demo on this page is the full knife running in an iframe. Try every feature in your browser, no signup required.
Sovereignty as a Service