Designs
Mono UI
A minimal, monochrome design system for developer tools and technical products.
Documentation
Guides, features & getting started
View docsOne-time purchase — buy once, yours forever. No subscription.
30-day money-back guarantee.
Lifetime updates, no subscription.
Figma library
400+ components organized in a structured Figma library with auto-layout, variants, and semantic color styles. Everything a developer-tool designer needs, nothing they don't.
400+ components, structured
Auto-layout Figma library with variants and semantic color styles.
Dark first, light included
Two complete themes — dark-first design, both production-ready.
Dark mode first
Every component designed in dark mode first, then light. Mono UI ships with two complete themes — both tested for contrast, both production-ready.
Developer handoff tokens
CSS variables and a JSON token file ship with every component. Tokens map 1:1 to Figma styles — no translation layer between design and code.
Tokens map 1:1 to Figma
CSS variables and JSON tokens ship with every component.
Starters, not a library
Unstyled React starters wired to tokens — copy, apply, ship.
React component starters
Unstyled React component starters wired to the token system. Copy the component, apply your tokens, ship. No fighting a component library's opinions.
One-time purchase — buy once, yours forever. No subscription.
30-day money-back guarantee.
Lifetime updates, no subscription.