Tools for understanding, debugging, and validating JSON data. Compare differences between two JSON documents, query nested data with JSONPath, validate against schemas, decode JWT tokens, and get structural statistics — all in your browser.
JSON Diff / Compare
Side-by-side JSON comparison with color-coded added, removed, and changed values. Perfect for comparing API responses across environments.
JSONPath Query
Query and extract data from JSON using JSONPath expressions. Supports filters, wildcards, recursive descent, and array slices.
JSON Tree Viewer
Explore JSON as an interactive collapsible tree. Expand and collapse nodes, search values, and understand complex nested structures visually.
JSON Schema Validator
Validate JSON data against a JSON Schema (Draft-07 or 2020-12). See detailed error messages with exact field paths for every violation.
JSON Schema Generator
Auto-generate a JSON Schema from any JSON data. Infers types, required fields, and nested object shapes automatically.
JWT Decoder
Decode and inspect JWT tokens. View header algorithm, payload claims, expiry, and issued-at times. 100% client-side — your tokens stay private.
JSON Stats Analyzer
Analyze JSON structure and get statistics: total keys, unique keys, max nesting depth, value type distribution, largest arrays, and most frequent keys.
JSON Formatter
Prettify, minify, and validate JSON. Real-time error detection, auto-format on paste, and keyboard shortcuts for power users.
JSON Repair / Fixer
Auto-fix malformed JSON — trailing commas, single quotes, unquoted keys, JS comments, Python literals, and unclosed brackets.
Modern applications exchange JSON constantly — REST APIs, WebSocket messages, configuration files, database exports. When something goes wrong, you need tools that help you understand what the data actually looks like, how it differs from expectations, and whether it conforms to a schema.
AllJSONTools analysis tools work entirely in your browser. This means you can safely analyze production API responses, JWT tokens from real sessions, and config files with secrets — without any data leaving your device.