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Visual Request Timeline

Get a complete view of every network request your app makes:
  • Interactive timeline with zoom and pan controls
  • Real-time updates as requests complete
  • Advanced filtering by method, status, URL, or GraphQL operations
  • Request timing visualization to spot slow endpoints instantly
Network request interface

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Deep Request Analysis

Click any request to see:
  • Full request and response headers
  • Request/response body with interactive JSON viewer
  • Method, URL, status code, and timing metrics
  • Request/response size tracking
  • Syntax highlighting for different data types

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Interactive JSON Viewer

Navigate complex API responses effortlessly:
  • Expand/collapse nested objects and arrays
  • Syntax highlighting (strings, numbers, booleans, null)
  • Clickable URLs automatically detected and linked
  • Copy functionality at any level
  • Deep nesting support with visual indentation
  • Light/dark mode aware
Network request interface

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GraphQL-First Debugging

Limelight is the only React Native debugger built specifically for GraphQL. Here’s what makes it special:

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Automatic GraphQL Detection

No configuration needed. Limelight automatically:
  • Detects GraphQL requests from any client (Apollo, urql, Relay, plain fetch)
  • Extracts and parses queries, mutations, and subscriptions
  • Works with any GraphQL server and client library

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Query Complexity Analysis

Understand the performance impact of every GraphQL operation:

Complexity Scoring

Real-time analysis based on query depth, field count, and fragment usage
Severity Levels:
ScoreLevelIndicatorWhat It Means
< 50Low🟢 GreenSimple query, fast execution expected
50-150Medium🟡 YellowModerate complexity, watch for performance
150-300High🟠 OrangeComplex query, may impact performance
300+Very High🔴 RedVery complex query, likely slow
Actionable Recommendations: Limelight automatically warns you about:
  • Deep nesting (depth > 4 levels)
  • Large field counts (> 100 fields selected)
  • Fragment overuse (> 10 fragments in one query)

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Beautiful GraphQL Formatting

Every GraphQL request is formatted for easy reading: Operation Display:
  • Operation name prominently displayed
  • Separated sections for query, variables, and response
  • Individual copy buttons for each section
Syntax Highlighting:
  • Full GraphQL syntax highlighting with color-coded:
    • Keywords (query, mutation, fragment)
    • Type names and field names
    • Variables and directives
    • String values, numbers, and booleans
  • Preserves formatting with proper indentation
  • Theme-aware (light/dark mode)
Variables Viewer:
  • Interactive JSON display for variables
  • Expand/collapse complex variable structures
  • Separate copy functionality

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GraphQL Error Handling

When GraphQL errors occur, Limelight makes them crystal clear:
  • Extracts GraphQL errors from response body
  • Beautiful error cards showing:
    • Error message prominence
    • Field path where error occurred
    • Line and column numbers
    • Error codes and extensions
  • Multiple error support with individual cards
  • Expandable details for complex errors