Data Format Analyzer
Paste JSON to validate syntax, structure, size, and content. Get a validation score and fix recommendations.
See example
Paste valid JSON like { "name": "test" } and click Analyze. Try: {}, { "items": [] }, or the default sample above.
Popular formats to check
Quick links to format-specific validators:
What this tool checks
- JSON syntax validity
- Structure (root object/array, nesting)
- Content size and format
- Common issues (trailing commas, unquoted keys)
How the Data Format Analyzer works
- Step 1: Paste your JSON, XML, or YAML data
- Step 2: Click Analyze — we validate syntax, structure, and size
- Step 3: Get a validation score (0–100) and links to fix tools for each issue
FAQ
- What formats are supported?
- Currently JSON. XML and YAML support are planned. Use the format-specific validators for full validation.
- What is the validation score based on?
- Syntax correctness, valid structure (object/array), content size, and common best practices.
- How do I fix validation errors?
- Each check includes a Fix link to the right validator (JSON, XML, YAML, API Response) for detailed repair.
Developer Tools Network
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About this tool
Paste JSON (or paste XML/YAML in future) to get a validation score, syntax check, structure analysis, and links to fix tools.