Top 20 Alternatives to Lunacy in Graphic Design & Prototyping Software

Web‑based collaborative design suite with real‑time editing, component libraries, and interactive prototyping. Works on any OS via the browser.

macOS‑only vector UI design tool renowned for its symbols, shared libraries, and extensive plugin ecosystem.

Cross‑platform design and prototyping app from Adobe, featuring repeat grids, voice prototyping, and seamless integration with Creative Cloud.

All‑in‑one screen design, animation, and prototyping platform with advanced motion design and shared design systems.

Interactive design tool that blends visual editing with React‑based code, enabling high‑fidelity prototypes and micro‑interactions.

Powerful wire‑framing and prototyping software for complex interactions, conditional logic, and documentation.

Simple web‑based design, prototyping, and user testing platform with handoff features for developers.

Design system‑focused tool that supports advanced interactions, states, and collaborative design‑to‑code workflows.

Open‑source, web‑based design and prototyping tool that works on any OS and supports SVG editing and component libraries.

Browser‑based prototyping platform for creating fully interactive mobile and web prototypes without coding.

Rapid wire‑framing tool with a sketch‑style UI, ideal for low‑fidelity mockups and early‑stage brainstorming.

Free macOS design tool from Facebook for building high‑fidelity prototypes with advanced interaction and animation capabilities.

Professional vector graphics editor for UI design, illustration, and branding, offering unlimited artboards and real‑time performance.

Cross‑platform vector design app (web & desktop) with UI kits, symbols, and basic prototyping features.

Online design platform with drag‑and‑drop UI templates, simple prototyping, and collaborative editing for non‑designers.

Free, browser‑based vector editor that supports real‑time collaboration and basic UI mockup creation.

Comprehensive vector illustration and layout suite with tools for UI design, typography, and export to multiple formats.

All‑in‑one prototyping tool with drag‑and‑drop components, auto‑layout, and rapid interaction design for web & mobile.

Web‑based UI prototyping platform offering a library of ready‑made components and quick click‑through mockups.

Design handoff and collaboration tool that syncs designs from Sketch, Figma, or Adobe XD into developer‑ready specs and assets.