# Market Map V0 Template: Fork It & Make Your Data Visual

- Tool: V0 Templates
- Last updated: July 2026

## TL;DR

The Market Map v0 template gives you an interactive Recharts Treemap visualisation with sector filters, hover tooltips, and switchable size metrics — all wired up and ready to fork. Drop in your real company or product data, deploy to Vercel in under a minute, and use the six prompts in this playbook to add live API data, a Supabase watchlist, or colour-coded gain/loss indicators.

## Frequently asked questions

### Is the Market Map v0 template free to use?

Yes. All community templates on v0.dev are free to fork. Forking the market map costs zero V0 credits; subsequent AI chat edits draw on your credit balance at the normal rate.

### Can I use this template commercially?

V0 community templates are published under an MIT-style license — you can use, modify, and deploy the Market Map template in commercial projects without attribution. Always verify the license shown on the template's community page before launching a paid product.

### Why does my forked market map look blank in the Vercel Sandbox preview?

The most common cause is Recharts trying to render server-side. The MarketTreemap component uses browser APIs (window.ResizeObserver) that don't exist in Node.js. Add 'use client' to the MarketTreemap file or wrap it in dynamic(() => import('./MarketTreemap'), { ssr: false }) to fix this.

### How do I connect real market data to the treemap?

Add a Next.js route handler at /api/market-data/route.ts that calls your data provider using a server-only env var (no NEXT_PUBLIC_ prefix). Fetch from this route in the page Server Component and add export const revalidate = 300 for 5-minute ISR refreshes. Prompt 5 in the Prompt Pack above walks through the full implementation.

### The SectorFilterBar toggle shows an empty chart when I deselect all sectors — is that a bug?

It is a known gap in the template. When the filtered data array is empty, Recharts Treemap renders nothing. Use the fix prompt under the relevant gotcha above to add an empty-state message so the UI stays informative.

### Will the Recharts Treemap perform well with 500+ companies?

Likely not at smooth 60fps. Recharts renders every cell as an SVG element and the DOM count grows linearly. Below 300 nodes performance is fine; above 500 you should consider switching to a D3 canvas-based treemap for better performance.

### Can RapidDev help me build a production version of this market map?

Yes. RapidDev connects V0 prototypes to live data feeds, adds Supabase persistence, and optimises Recharts rendering for larger datasets. Reach out at rapidevelopers.com to discuss your project.

### Can I embed the market map in an existing Next.js app?

Yes. Use the GitHub integration in V0 (Git panel → Connect) to push the template to a branch. Merge via PR and import the MarketTreemap, SectorFilterBar, and supporting components into your existing project. You will need Recharts and shadcn/ui installed.

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Source: https://www.rapidevelopers.com/v0-template/market-map
© RapidDev — https://www.rapidevelopers.com/v0-template/market-map