An AI coding agent that lives in your browser, letting you edit frontend source files by clicking elements and describing changes in plain English.
Frontman is an open-source AI coding agent that integrates with your frontend development server, allowing you to make visual changes to your application directly from the browser. It sees the live DOM, component tree, and computed CSS, enabling precise edits to source files through a chat interface. The tool solves the problem of tedious back-and-forth between design and code by letting anyone on the team iterate on the frontend visually.
Frontend developers who want richer context than terminal-based AI tools, as well as designers and product managers who need to adjust copy, spacing, colors, or layouts without opening an IDE. It's also valuable for teams where collaboration between design and engineering is time-consuming.
Developers choose Frontman because it provides unique live application context—seeing the rendered output and computed styles—which leads to more accurate and intuitive edits. Its browser-based, visual editing workflow and BYOK pricing model offer a free, open-source alternative to proprietary AI coding tools.
The AI agent that lives in your framework/browser
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Frontman accesses the rendered DOM, computed CSS, and component tree, providing accurate visual feedback that source-file-only tools lack, as highlighted in its comparison table.
Users click elements and describe changes in plain English; edits apply to source files with instant hot reload, enabling non-technical team members to iterate quickly.
Supports Next.js, Astro, and Vite with React, Vue, or Svelte via simple commands like `npx @frontman-ai/nextjs install`, easing integration into popular stacks.
BYOK approach means no subscription fees; users pay directly to LLM providers like Anthropic or OpenAI, offering flexibility in model choice and cost control.
Limited to specific frameworks; doesn't work with Angular, Ember, or vanilla JS setups, restricting utility in diverse or legacy tech stacks.
While the tool is free, users must cover LLM API expenses for models like Claude or GPT, which can accumulate with frequent use, unlike flat-fee alternatives.
The server is AGPL-3.0 licensed, requiring sharing modifications if deployed commercially, which may deter enterprises wanting private changes.
Frontman is an open-source alternative to the following products:
Cursor is an AI-powered code editor built on VS Code, designed to enhance developer productivity with features like AI-assisted coding, code generation, and intelligent autocomplete.
v0 is a generative UI tool by Vercel that creates React components from text prompts, enabling rapid prototyping of user interfaces.
GitHub Copilot is an AI-powered code completion tool that suggests lines or blocks of code as developers type, trained on public code repositories.