NameStatusMethodSizeTime
gql504POST13 KB895 ms
gql200POST575 KB837 ms
users304POST701 KB238 ms
posts/[id]200DELETE910 KB338 ms
Loved by developers who value their time.
From indie hackers to product teams.
AI can see your code. It can't
see what happened.
Instantly get answers that actually help. Limelight's AI correlates events across
your entire debugging session to pinpoint root causes, not just symptoms.
Debugging made effortless
Limelight correlates logs, metrics, and traces to provide AI-driven insights, making debugging faster and more efficient than ever before.
Why did this request fail?
Instant correlation
See how events connect. Limelight automatically links network requests, errors, and logs to surface the real issue.
Network request
POST /api/checkout
Store change
UNAUTHENTICATED
Console error
Token refresh failed
Debug faster, ship sooner
Limelight gives you Chrome DevTools-quality inspection with React Native-first features.
No setup nightmares, no disconnects, just debugging that works.
94%Props
29 of 31 renders
Parent6%
Unstable references (1)
onPress29×
1
() => handlePress()2
() => handlePress()Renders
See why your app renders
gql504POST
gql200POST
users304POST
posts/[id]200DELETE
Network Requests
Find the exact request that broke
State
Track Redux and Zustand
Auto-detected issues before they become bugs
Limelight automatically identifies potential issues in your codebase, allowing developers to address them proactively before they escalate into critical bugs.
APP
Repeated warning: deprecated API usage(10)
1 affected log
APP
Unhandled error in useEffect hook(10)
3 affected logs
APP
Component rendered 50× in 2 seconds(10)
2 affected logs
APP
Query returned 3× more data than usual(10)
1 affected request
Complexity scored, performance predicted
Limelight evaluates the complexity of your code and predicts its performance, helping developers optimize their code for better efficiency and maintainability.
Query Health
High
Score: 297
This query returns significantly more data than usual,
which may impact performance.
query GetUserProfile($userId: ID!) {
user(id: $userId) {
__typename
...UserProfileFieldsFragment
}
}
user(id: $userId) {
__typename
...UserProfileFieldsFragment
}
}
Your data stays yours
Built with privacy and security at the core. Your debugging data never leaves your machine with the Desktop app. Data is only stored in memory with the web app and never persisted to disk or logged.
Auto-redacted sensitive data
Automatically detect and redact API keys, tokens, passwords, and PII from all captured data.
beforeSend hooks
Complete control over what gets captured with customizable hooks to filter or modify data.
Local only option
Run the Limelight Desktop app locally without any internet connection for maximum security.
Never stored, never logged
Debugging data is streamed in real-time and held only in memory. Nothing is persisted to disk or databases.
Setup in under 60 seconds
No configuration files. No environment variables. No headaches. Just two lines of code. The Limelight SDK is open source and free to use.
App.tsx
import { App } from "./App"
import { Limelight } from "@getlimelight/sdk"
Limelight.connect()
export default function Root() {
return <App />
}Install the package
Add Limelight to your React Native project with your favorite package manager.
npm install @getlimelight/sdkAdd two lines of code
Import Limelight and connect. That's it. No wrappers, no providers, no config.
import { Limelight } from "@getlimelight/sdk"
Limelight.connect()Frequently Asked Questions
Everything you need to know about Limelight
Limelight is a runtime debugging platform built for React Native. It captures your app's full runtime context — network requests, GraphQL operations, console logs, state changes (Zustand, Redux), and component renders — correlates them into a structured Debug IR (Intermediate Representation), and delivers that intelligence to AI coding assistants like Cursor, Claude, and Copilot via MCP, or to Limelight's own visual debugger. Works with Expo and the React Native New Architecture.
Limelight includes an MCP (Model Context Protocol) server that pipes correlated runtime context directly into AI editors. When you ask your AI assistant a debugging question, Limelight provides the runtime evidence — out-of-order API responses, state overwrites, unnecessary re-renders — so the AI gives you a specific fix instead of a generic suggestion. No copy-pasting logs into ChatGPT. Connect it to Cursor, Claude Code, Copilot, or Windsurf in minutes.
Reactotron requires significant configuration and plugin setup, has limited GraphQL support, and no AI capabilities. Limelight works out of the box with zero config — just two lines of code. It includes a full network inspector with GraphQL operation tracking, automatic event correlation that links requests to state changes to re-renders, and AI-powered root cause analysis via both the built-in debugger and the MCP server. It's a modern alternative built for how developers work today.
Debug IR (Intermediate Representation) is Limelight's structured output format optimized for AI consumption. Raw runtime events from your React Native app are correlated by timing, causality, and component relationship. Patterns and anomalies like render loops, stale closures, and retry storms are detected automatically. The output is structured, anonymized, and token-efficient. The same Debug IR powers the visual debugger, the built-in AI, and the MCP server.
Limelight currently supports React Native (including Expo and New Architecture) and React applications with a lightweight, open-source SDK. Setup takes under 60 seconds with zero config. Node.js and Next.js backend support is coming next for full-stack debugging. The SDK is free and available on npm as @getlimelight/sdk.
Yes. The Limelight SDK is open source and free to use. The Free plan includes core debugging features — network inspection, GraphQL debugging, console logs, state tracking (Zustand, Redux), and render analysis. A Pro plan is available at $29/month for advanced features including AI-powered root cause analysis, the MCP server for Cursor/Claude/Copilot integration, unlimited projects, and 500 AI queries per month.
