JSON Developer Glossary
Clear definitions for JSON tooling terms — JSONPath, JQ, schema validation, formatters, and more.
JSON
JSON (JavaScript Object Notation) is a lightweight, text-based data format for storing and exchanging structured data. It uses key-value pairs and arrays, and is the standard format for REST API responses, configuration files, and webhook payloads.
JSON Formatter
A tool that takes raw or minified JSON and reformats it with readable indentation and consistent spacing. Also called a JSON beautifier or JSON pretty-printer.
Try JSON Formatter →JSON Validator
A tool that checks whether a text string is syntactically valid JSON. It detects errors like missing brackets, trailing commas, unquoted keys, and invalid escape sequences.
Try JSON Validator →JSON Beautifier
Another name for a JSON formatter. A beautifier adds indentation and line breaks to minified JSON, making nested structures easier to read and debug.
Try JSON Formatter →JSON Minify
The process of removing all unnecessary whitespace from JSON to produce the smallest possible payload. Used in production APIs and network transfers where size matters.
Try JSON Formatter →JSONPath
A query language for JSON, similar to XPath for XML. JSONPath expressions let you extract specific values from nested JSON structures. Example: $.store.book[*].author extracts all book authors.
Try JSONPath Query →JQ
jq is a lightweight command-line JSON processor for filtering, transforming, and extracting data. BracketView runs a full jq engine in the browser via WebAssembly.
Try JQ Playground →JSON Diff
A comparison tool that shows differences between two JSON documents — highlighting added, removed, and changed keys and values side by side.
Try JSON Diff →JSON Tree View
A visual representation of JSON as a collapsible tree of nodes. Each key and value is displayed as an expandable branch, making deeply nested structures easy to navigate.
JSON Schema
A vocabulary and specification for describing the structure, types, and constraints of JSON data. Used to validate API payloads and generate documentation.
Try Schema Validator →OpenAPI
A specification for describing REST APIs, including endpoints, request/response schemas, and authentication. OpenAPI schemas can be used to validate JSON payloads in BracketView.
Try Schema Validator →JSON-LD
JSON-LD (JSON for Linked Data) is a method of encoding structured data using JSON. It is used in schema markup to help search engines and AI systems understand page content.
REST API
REST (Representational State Transfer) is an architectural style for web APIs. REST APIs typically exchange data in JSON format via HTTP methods like GET, POST, PUT, and DELETE.
TypeScript Interface Generation
The process of automatically creating TypeScript interface or type definitions from a JSON object. BracketView generates accurate interfaces from API response examples in one click.
Try Type Generator →WebAssembly (Wasm)
A binary instruction format that runs at near-native speed in web browsers. BracketView uses WebAssembly to run the jq engine client-side without a server round-trip.
Try JQ Playground →Client-Side Processing
Running data operations entirely in the user's browser without sending data to a remote server. BracketView's core JSON tools are client-side for privacy-first processing.
JSON Graph View
A visual mode that maps JSON relationships as a dynamic node network instead of a hierarchical tree. Useful for understanding complex object references and nested structures.
Encrypted Snapshot
A shareable link that stores an encrypted copy of a JSON document with optional expiry. Used for async debugging and team collaboration without exposing raw data publicly.
Mock Data Generator
A tool that creates realistic test data rows from a JSON Schema definition. BracketView's AI Mock Data Generator produces sample payloads for API testing and development.
AI JSON Fixer
An AI-powered tool that automatically repairs broken JSON syntax — fixing missing commas, unquoted keys, trailing commas, and other common errors with one click.