JSON Viewer & Formatter
Parse, validate, beautify, minify, and explore JSON data structures interactively.
Paste your JSON and it will render as an interactive tree here.
About JSON Viewer, Formatter & Validator
JavaScript Object Notation (JSON) is the standard lightweight data-interchange format standardized under RFC 8259 and ECMA-404. It is human-readable, language-independent, and serves as the primary data payload format for REST APIs, GraphQL endpoints, configuration files, and NoSQL document databases.
Key Features of This JSON Utility
- Syntax Validation & Error Locating: Detects invalid JSON syntax, trailing commas, single-quote violations, unquoted keys, and missing brackets with precise line and column error indicators.
- Interactive Tree Inspection: Navigate complex, deeply nested JSON objects and arrays with collapsible nodes, data-type color highlighting, and instant key-value search filtering.
- Beautify & Minify: Instantly switch between clean 2-space or 4-space formatted indentation for readability, and single-line minified JSON for minimal payload size.
- Path Copying: Click any property to copy its JSONPath or dot-notation path directly to your clipboard.
Frequently Asked Questions (FAQ)
Are trailing commas allowed in standard JSON?
No. Standard JSON strictly disallows trailing commas after the last element in arrays or objects. This validator highlights trailing commas as syntax errors.
Is my JSON payload kept private?
Yes. All parsing, validation, and tree rendering occur strictly within your local browser memory. No payload is sent to any remote server or stored in cookies.
How large of a JSON file can this viewer handle?
Thanks to virtualized rendering and lightweight DOM creation, this tool smoothly processes JSON documents up to tens of megabytes in size.