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Advanced JSON Studio: The Intelligent JSON Workspace

Stop wrestling with malformed data. Elevate your development workflow with the most powerful JSON toolkit for the IntelliJ Platform. Advanced JSON Studio isn’t just a formatter—it’s a complete engineering environment designed to handle everything from massive API responses to broken configuration files. It’s the last JSON tool you’ll ever need.

• Auto-parse as you type — results update instantly without pressing a button. • Support converting JSON5, JSON, YAML, XML, TOML, Properties, JWT, CBOR and BSON in a single unified interface. • Present JSON in a clean, readable format with automated pretty printing. • Validate JSON for accuracy and integrity with ease. • Load local JSON files effortlessly with a dedicated sidebar button. • Retrieve JSON from web sources quickly — supports custom headers and POST body too. • Work across multiple tabs — each session is isolated, close and rename tabs individually. • Navigate JSON structures effortlessly using an intuitive Tree View with live search. • Visualize complex JSON structures as interactive graphs. Expand the view to explore large datasets with ease. • Query JSON using JSONPath and JMESPath expressions with live autocomplete. • Convert JSON to YAML instantly. • Convert JSON to XML instantly. • Convert JSON to TOML instantly — arrays of objects use correct [[table]] syntax. • Convert JSON to .properties instantly. • Convert JSON to CBOR instantly. • Convert JSON to BSON instantly. • Infer a JSON Schema from your JSON structure automatically. • Decode and verify JWT tokens — supports HMAC (HS256/384/512), RSA and ECDSA signatures. • Minify/Uglify JSON to a single line with one click. • Custom indentation size (1–8 spaces) and alphabetical key sorting. • View live statistics — key count, depth, object/array counts, and file size. • Compare two JSON documents side-by-side with structural diff highlighting. • Generate realistic dummy JSON for testing — choose structure, depth, and size. • Repair malformed JSON automatically using built-in and AI-powered strategies (can be disabled in settings). • Generate code from JSON powered by the acclaimed Quicktype engine — supports 12 languages: TypeScript, JavaScript, TypeScript + Zod, Python, Java, Kotlin, Swift, Go, C#, Rust, Ruby, and Dart. Output is written directly into your project directory.

• Open parser as a full editor tab — pop the tool window into the main editor area for more screen space. • Tip of the day — discover features with in-app tips; dismiss, navigate or disable anytime. • Your JSON input is automatically saved locally and restored on restart — no cloud sync, fully private. • Localization — the entire UI is available in Japanese, Korean, and Chinese (Simplified), following your IDE locale automatically.

• JSON Schema Validator — validate your JSON against any JSON Schema; save, edit and delete named schemas; view errors in a list or as live annotations in the Pretty tab.

• CSV Table View — convert any JSON array to a sortable table; download as .csv with one click. • Base64 auto-detection — paste a Base64-encoded JSON string and it is decoded and parsed automatically; a Base64 Encode tab encodes the current JSON to a Base64 string.

• Flatten / Unflatten — expand nested JSON into dot-notation flat pairs, or rebuild nested structure from flat keys. • Rich Pretty Print — live gutter decorations (color swatches, image thumbnails, clock/calendar/link/UUID icons) and inline inlay hints (timestamps, sizes, durations, large numbers) in the Pretty tab. All individually toggleable.

• Code → JSON — convert Python dicts/lists/tuples, JavaScript objects/arrays, and TypeScript exports directly to JSON. Handles interface/type declaration stripping, template literals, undefined → null, NaN/Infinity → null, trailing commas, and comments. Auto-converts as you type.

• GraphQL Formatter — format and validate GraphQL SDL, queries (with variables, aliases, fragments), mutations, subscriptions, and all SDL types via graphql-java. Auto-formats as you type.

• GraphQL Introspection — connect to any live GraphQL endpoint and fetch the full schema; browse types, fields, arguments, enums, interfaces, and directives. • GraphQL Query Runner — write and execute GraphQL queries with variables against a connected endpoint; results load directly into the JSON tooling pipeline.