About ASCII Mockups

ASCII Mockups is a free web application for creating ASCII-based UI mockups that serve as visual instructions for LLMs and coding agents.

Designing user interfaces for AI assistants can be challenging. Traditional image-based mockups are not easily interpreted by language models. ASCII Mockups bridges this gap by allowing you to create text-based wireframes that AI can understand and implement.

What you can do

• Design UI layouts using 45+ ASCII components
• Create multi-page mockups for complex applications
• Export in LLM-optimized formats for Claude, GPT, and others
• Share mockups via unique links
• Work entirely in your browser with local storage persistence

Built by DocuTray

ASCII Mockups is developed and maintained by DocuTray, focused on creating tools that improve developer workflows with AI assistants.