Comparison
Frontman vs v0
Edit Your Real App vs Generate New UI
Frontman and v0 both use AI to work on real code, but they emphasize different workflows. v0 is an end-to-end agent for prompt-driven creation, prototyping, backend connection, and deployment. Frontman edits your existing codebase by interacting with your running app in the browser.
Frontman is a source-available AI coding agent with a distributed architecture. Browser tools inspect the live DOM and computed CSS, the local framework integration (Next.js, Astro, Vite) provides component and filesystem context, and the server orchestrates the agent loop and persists task history. You click elements in your running app, describe changes in plain English, and Frontman edits the actual source files with hot reload. Free and unlimited — you bring your own API keys.
v0 is Vercel's AI agent for real code, full-stack apps, and agents. It can create high-fidelity UI from mockups, connect backends, work with APIs, databases, and components, show a real-time preview, diagnose and fix errors, open pull requests, and deploy with one click. Credit-based pricing starting at $0/month (7 messages/day).
The core difference: v0 centers an end-to-end prompt-driven path from creation and prototyping through deployment. Frontman centers editing an existing running app through browser and framework runtime context.
Disclosure: This page is published by the Frontman team. We've done our best to present Frontman and v0 accurately and fairly, but we are naturally biased toward our own product. We encourage you to try both tools and decide for yourself.
Capability and product-positioning facts last checked: . Pricing figures retain their publication snapshots and are not covered by this review date. Sources: Frontman documentation, Frontman source repository, v0 documentation
Feature Comparison
| Feature | Frontman | v0 |
|---|---|---|
| Edits real code | Edits actual source files in your project | AI agent writes code and can open pull requests |
| Sees live DOM & styles | Browser-side MCP server inspects your running app | Real-time preview for its project workspace |
| Click-to-select elements | In your running app | In its real-time preview |
| Works with existing projects | Designed around an existing running app | Can work on real code and open pull requests |
| Live feedback loop | Instant via your framework's HMR | Real-time preview with diagnostics |
| Generate full-stack apps and agents | End-to-end prompt-driven creation | |
| Deploy to production | One-click deploy to Vercel | |
| Generate high-fidelity UI from mockups | ||
| Framework-aware middleware | Hooks into Next.js, Astro, Vite runtime | Generates framework code but doesn't integrate into your dev server |
| Backend integration | Existing routes, server logs, and app data | Connects APIs and databases |
| Diagnostics and error fixing | Uses running-app browser and framework context | Built into the creation and preview workflow |
| Designer/PM friendly | No IDE needed — works in your browser | No IDE needed — works in v0.dev |
| Source availability | Source-available: Apache-2.0 browser/JS; GPL-2.0-or-later WordPress; AGPL-3.0-only server plus AI Supplementary Terms | Proprietary SaaS |
| BYOK (bring your own key) | Any LLM provider | BYOK not documented in reviewed official sources |
| Self-hostable | Server runs on your infrastructure; local integration owns filesystem access | Cloud service only |
| Works offline (with local LLM) | Requires a local model and all required services to run locally | Requires internet |
Edits real code
Sees live DOM & styles
Click-to-select elements
Works with existing projects
Live feedback loop
Generate full-stack apps and agents
Deploy to production
Generate high-fidelity UI from mockups
Framework-aware middleware
Backend integration
Diagnostics and error fixing
Designer/PM friendly
Source availability
BYOK (bring your own key)
Self-hostable
Works offline (with local LLM)
What v0 Does Well
v0 covers a broad path from an idea or mockup to real code, a working full-stack app or agent, and deployment.
Prompt-to-app creation. Describe what you want in plain English and v0 can build the interface, connect a backend, and work with APIs, databases, and components.
High-fidelity UI from mockups. v0 can turn visual references into working interfaces and provides a real-time preview for continued iteration.
Diagnostics and error fixing. The agent can diagnose errors and apply fixes as part of the same build-and-preview workflow.
One-click deploy. v0 can deploy a generated app with one click. Frontman is a development tool, not a deployment platform.
Pull requests. v0 can open pull requests, giving teams a code-review path from agent work into a repository.
Where Frontman Is Different
v0 can create and modify real code through a broad prompt-driven workspace. Frontman specializes in an existing app that is already running in your browser and framework dev server.
Start from the running app. When you use Frontman, you're editing the actual source files in your project. The AI sees the component tree, the CSS as the browser computed it, routing, and server state. Changes show up via hot module replacement in your actual dev server. v0 instead centers an end-to-end project workflow from prompts and mockups through backend connections, preview, and deployment.
Framework middleware integration. Frontman installs as a plugin into your dev server — @frontman-ai/nextjs, @frontman-ai/astro, or @frontman-ai/vite. This gives it access to your component tree at the framework level (React fiber nodes, Vue reactivity, Svelte components), computed CSS from your actual stylesheets, server-side routes and logs, and source map resolution to find the exact file and line for any rendered element.
Browser and framework runtime context. Frontman's browser tools and local framework integration inspect your actual app's design system output, components, server endpoints, and responsive behavior. When you ask "make this card match the other cards on the page," Frontman can inspect the other cards' rendered styles in that running app.
Source-available and BYOK. v0 is a proprietary SaaS with credit-based pricing. Frontman's browser client and JavaScript framework integrations are Apache-2.0, its WordPress plugin is GPL-2.0-or-later, and the server is AGPL-3.0-only with AI Supplementary Terms. Self-hosting remains available, and you bring your own API keys — Claude, ChatGPT, OpenRouter, or any OpenAI-compatible API including local models.
Works with the components already rendered. Frontman is component-library agnostic — it sees whatever your app actually renders, whether that's MUI, Chakra, Radix, custom components, or plain CSS. v0 also supports components, but Frontman's distinction is observing them inside your existing running application.
Who Should Use v0
v0 is the better choice when you want an end-to-end prompt-driven build workflow:
- Rapid prototyping — turning ideas or requirements into working UI as fast as possible
- Starting new projects — generating a complete app scaffold from a description
- Mockup-to-code workflows — converting visual references into high-fidelity working UI
- Non-developers building apps — product managers, designers, and founders who need working code without writing it
- Quick deploys — need a working URL to share with stakeholders immediately
- Full-stack apps and agents — connect backends, APIs, databases, and components in one workflow
- Repository workflows — let the agent diagnose errors, fix code, and open pull requests
Who Should Use Frontman
Frontman is the better choice when you're working on an existing codebase:
- Iterating on existing UI — adjusting styles, fixing responsive issues, refining layout on a real app
- Frontend developers on established projects — your app already exists and you need to edit it with AI that understands the context
- Teams where designers make UI changes — click elements in the running app, describe changes, review code diffs
- Any component library or CSS approach — MUI, Chakra, Tailwind, CSS Modules, styled-components — Frontman sees what renders, not what you typed
- Source-available and vendor-independent — BYOK and self-hostable for teams that want control
- Server-side context matters — routes, server logs, and server-side state alongside visual editing
A natural workflow: use v0 to build an app or initial UI, then use Frontman when that code is running in your project to iterate and refine visually with full browser context.
Pricing Comparison
Frontman
Source-available, BYOK
- Unlimited usage, no caps or credits
- Bring your own API keys (Claude, ChatGPT, OpenRouter)
- Or sign in with Claude/ChatGPT subscription via OAuth
- Apache-2.0 browser/JS; GPL-2.0-or-later WordPress; AGPL-3.0-only server plus AI Supplementary Terms
- You pay your LLM provider directly
v0
Credit-based, proprietary
- Free: $5 credits/month, 7 messages/day
- Premium: $20/month, $20 credits + $2 daily bonus
- Team: $30/user/month, shared credits
- Business: $100/user/month, training opt-out
- Additional credits purchasable on-demand
v0 Alternatives
If v0 isn't the right fit, here are other tools worth evaluating — and how they compare to Frontman.
Frontman
Visual editing in your real app with runtime context and source-level diffs.
Frontman vs Bolt.new
Prompt-to-app generation in a sandbox for rapid prototyping and greenfield starts.
Frontman vs Lovable
Generative app builder for non-coders with hosted infrastructure.
Frontman vs Onlook
Visual design and code canvas for teams working directly in React codebases.
Frontman vs Stagewise
Open-source agentic desktop IDE with direct workspace edits and a full browser engine.
Frequently Asked Questions
Is Frontman a source-available alternative to v0?+
They emphasize different workflows. v0 (v0.dev) is an AI agent for building real code, full-stack apps, and agents through an end-to-end prompt-driven workflow with preview and deployment. Frontman (frontman.sh) is an AI coding agent for editing existing codebases — you click elements in your running app, describe changes, and it edits the actual source files. Frontman is source-available, with an Apache-2.0 browser client and JavaScript integrations, a GPL-2.0-or-later WordPress plugin, and an AGPL-3.0-only server plus AI Supplementary Terms, and is free with BYOK. If you're starting from scratch, v0 is faster. If you're editing an existing app, Frontman is the right tool.
Can Frontman generate UI from scratch like v0?+
No. Frontman is designed for editing existing codebases, not generating new projects from prompts. Its strength is visual editing: click an element in your running app, describe what you want changed, and the AI edits the source code with full browser context. If you need to generate a full-stack app, agent, or high-fidelity UI from a prompt or mockup, v0 is the better tool. If you need to modify your existing Next.js app's UI with AI that can see the rendered result, Frontman is the better tool.
Can I use v0 and Frontman together?+
Yes, and this is a natural workflow. Use v0 to build an app, agent, initial UI, or prototype and connect its backend. Then use Frontman on the running project to iterate visually — clicking elements, adjusting styles, and fixing responsive issues with browser and framework runtime context.
What does Frontman see that v0 does not?+
Frontman integrates with your framework (Next.js, Astro, Vite) as middleware and runs browser-side tools. It sees your existing running app's live DOM, computed CSS, component tree with props and state, server-side routes and logs, and actual viewport behavior. v0 has a real-time preview and diagnostics for its project workflow; Frontman's distinction is starting from your running app and connecting browser observations to local framework runtime context.
How does Frontman pricing compare to v0?+
v0's free tier gives you $5 of credits per month with a 7-message daily limit. Premium is $20/month, Team is $30/user/month. Frontman remains free to self-host under its source-available licensing terms. Hosted Frontman Pro is available now. You bring your own API keys and pay your LLM provider directly.
Which tool is better for designers?+
It depends on the workflow. v0 is better for generating high-fidelity UI from descriptions or mockups — designers can describe what they want and get working code. Frontman is better for iterating on existing UI — designers can click elements in the running app and describe visual changes without opening an IDE. v0 covers prompt-driven creation through deployment; Frontman centers browser-led editing of an existing app.
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$ npx @frontman-ai/nextjs installNext.js$ npx @frontman-ai/vite installVite (React, Vue, Svelte, SolidJS)$ astro add @frontman-ai/astroAstro