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rsc-performance-dashboard

v0.1.0

Published

A developer tool to visualise React Server Component rendering — server vs client split, payload sizes, and Interaction to Next Paint metrics.

Downloads

156

Vulnerabilities

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Links

Maintainers

vikashkr05vikashkr05

Keywords

Readme

RSC Performance Dashboard

A developer tool to visualise React Server Components rendering in real time — showing the server/client component split, wire payload sizes, INP, and TTFB metrics.

Dashboard TypeScript Tailwind

Why this exists

React Server Components shift rendering to the server, but developers have no built-in visibility into:

  • Which components render server-side vs client-side
  • How much data is serialised over the wire per component
  • How RSC adoption affects real-user metrics like INP and TTFB

This dashboard surfaces all of that in one place.

Features

  • Live render event stream — auto-updates every 4 seconds (toggle on/off)
  • Component type split — server (indigo) / client (amber) / shared (emerald) colour coding
  • Payload breakdown — pie chart of wire bytes by component type
  • Performance timeline — area chart of render time, INP, and TTFB over recent events
  • Component inspector — click any render event to see per-component render time and payload
  • Stat cards — avg render time, payload, INP, TTFB, server ratio, total events

Tech stack

  • Next.js 14 with App Router and React Server Components
  • TypeScript throughout
  • Tailwind CSS for styling
  • Recharts for charts
  • Lucide React for icons

Getting started

npm install
npm run dev

Open http://localhost:3000.

Roadmap

  • [ ] Real instrumentation via Next.js middleware + server actions
  • [ ] WebSocket live feed from a Next.js dev server plugin
  • [ ] Per-route historical comparison
  • [ ] Export metrics as JSON / CSV
  • [ ] Lighthouse integration for automated INP regression detection

Author

Vikash Kumar — github.com/vikashkr05 · linkedin.com/in/vikashkumar108