pen.dev vs Visily

pen.dev is a canvas for building software and a vector design tool integrated with development environments. Its editor works with components, variables, themes, scripts and shaders, and can import Figma files and HTML. It can export to HTML, CSS and Tailwind, as well as PNG, JPEG, WEBP and PDF. Users can work with its integrated agent or connect external agents through MCP; the available plans specify how many agents can run in parallel. Documented integrations include Claude Code, Codex, Gemini CLI, Antigravity, OpenCode, Kiro and Claude Desktop. Integrated provider options include OpenAI, Anthropic, Google Gemini, Cursor, GitHub Copilot, xAI, OpenRouter and other API-key providers. Its.pen design file is open JSON with an open schema. Tools include a Chrome extension for importing webpages, IDE extensions and an npm-installed CLI requiring Node.js 22.19 or later. The pricing page says pen.dev stays free until plans launch. The Free plan is free; Pro is $16 a month; Ultra is $48 a month.

Visily is an AI-powered UI design tool for people creating app mockups and product designs without being designers. It generates designs from text, converts screenshots into editable designs, and turns diagrams into screens. Real-time multi-user editing lets collaborators work on the same interface. More than 1,500 customizable templates cover mobile apps, web apps, websites, wireframes, and diagrams. Visily runs entirely in a browser, while its screenshot extension for Chrome, Edge, and Firefox converts captures into editable wireframes. A Figma plugin exports designs for further refinement, and integrations include Notion, Jira, Slack, and MCP. Slack can show link previews, comment notifications, and board updates. MCP connects designs with coding agents and is available on Pro, Business, and Enterprise plans. Starter is free at free, Pro costs $14 a month, and Business costs $29 a month billed annually. Enterprise pricing is custom.