Format and indent JSON payloads instantly in your browser. Supports 2-space, 4-space, tab indentation, and key sorting. Validates syntax with line and column pointers.
Valid JSON required for Tree View
Fix syntax errors or click "Repair" to inspect hierarchy.
Format, beautify, validate, and explore structured JSON payloads with zero network latency. Includes multi-view navigation (formatted code, interactive collapsible tree, structured data table, SVG graph visualization, and JSONPath extraction) alongside an automated syntax healer for trailing commas and unquoted keys.
Switch seamlessly between syntax-highlighted code, expandable hierarchical tree nodes, flattened tabular rows, and interactive relational node graphs.
Automatically fixes Python-style single quotes, unquoted keys, trailing commas in objects/arrays, and unescaped newlines.
Extract specific sub-trees or list elements with instant $.path expressions and live query evaluation.
Transpile your validated JSON directly into TypeScript interfaces, YAML, CSV, XML, or JSON Schema in 1-click.
Paste massive REST or GraphQL payloads, quickly pinpoint malformed syntax, filter for targeted response fields, and visualize nested entities.
Sort keys alphabetically, strip extraneous null values, and repair loose JSON strings copied from config maps or Docker envs.
Convert live API JSON mocks straight into strongly typed TypeScript interfaces with optional fields and nested definitions.
Safely inspect production telemetry and customer payloads without risk of exfiltration — all parsing occurs 100% inside client memory.
Explore deep relational trees using the SVG Graph view to map out complex microservice schemas and entity relationships.
Validate JSON syntax and pinpoint syntax error line numbers.
Compress JSON by stripping unnecessary whitespaces and newlines.
Compare two JSON payloads side-by-side with visual delta highlights.
Generate TypeScript interfaces and type definitions from JSON payloads.