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JSON File Inspector

Advanced JSON Validator

Professional-grade JSON validation with comprehensive error detection and performance optimization

0 KB

File Size

0

Objects

0

Arrays

0

Lines

JSON Input

Upload JSON File (.json files supported)

Max: 10MB

JSON Content

Use Ctrl+Shift+F to search, Ctrl+Shift+H to find & replace, Ctrl+G to jump to line Line 1, Column 1

Structure

JSON Syntax

Validates basic JSON syntax and structure rules

Brace Balance

Ensures proper matching of curly braces and square brackets

Nesting Depth

Analyzes nesting depth and warns about deeply nested structures

Values

String Values

Validates string escape sequences and character encoding

Number Format

Checks number format validity and range limitations

Null Values

Validates proper null value usage and undefined references

Standards

Strict JSON

Enforces strict JSON specification compliance

Duplicate Keys

Detects duplicate keys within the same object

UTF BOM Detection

Detects UTF Byte Order Mark and offers removal

Advanced

Unicode Validation

Validates Unicode escape sequences and character encoding

Trailing Commas

Detects invalid trailing commas in objects and arrays

Performance Issues

Analyzes document complexity and identifies performance bottlenecks

Validation in Progress

Initializing... 0%

Preparing validation engine...

Validation Status

Ready to validate JSON

Validation completed in 0ms

Issues Summary

Errors 0

Warnings 0

Info 0

Performance

Parse Time -

Memory Usage -

Complexity -

Errors 0

Critical issues that prevent valid JSON

Warnings 0

Potential issues and best practice violations

Information 0

Suggestions and recommendations

JSON Structure

Code Context

Actions

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