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Premium JSON formatter, validator, interactive tree-view inspector, JSONPath filter, and mock data generator. Streamline your JSON workflow with JSON Parser & Mock DevTools—the ultimate workspace for frontend developers, API engineers, and data analysts. Whether you need to format a quick payload snippet or inspect a massive nested API response, this extension provides a dual interface: a quick-access toolbar popup and a full-page split-pane dashboard workspace. 🚀 Key Features: Format & Beautify: Instantly clean up, indent (2 spaces, 4 spaces, tabs), and organize messy JSON. Compact Minifier: Collapse JSON objects to a single line for API request payloads. Interactive Collapsible Tree: Inspect complex hierarchies with a visual, color-coded node viewer (expanded arrays, objects, and types). Syntax Validation: Real-time validation checks highlighting line-by-line syntax errors (like missing commas or unquoted keys). JSONPath Query Engine: Run simple JSONPath query paths (e.g. $.items[*].name) to filter down massive datasets instantly. Mock Data Generator: Test your APIs! Paste templates and generate random mockup datasets (names, emails, numbers, custom pick-lists) in seconds. Local History Log: Automatically stores your last 10 actions so you never lose previous snippets. 🔒 100% Secure & Offline: Your data is private. JSON Parser & Mock DevTools executes all formatting, validation, and querying operations locally in your browser. We never collect, store, or transmit your JSON inputs to any external servers.