TinyTools

JSON Parser Online

Parse, validate, and inspect JSON structures with an interactive hierarchical tree view, data type tags, and path search.

Runs locally in your browser. No files or data are uploaded to any server.
Ready
JSON Raw Source
0 chars 0 lines 0 B
Interactive Node Tree
Paste valid JSON on the left to inspect tree hierarchy
0 nodes parsed Click node or badge to copy JSONPath

Understanding JSON Parsing: Syntax, Data Types & Tree Navigation

A JSON Parser is an essential developer tool that validates and decomposes raw text streams into hierarchical objects and arrays. When dealing with heavily nested payloads from GraphQL endpoints, NoSQL database collections, or microservice payloads, inspecting raw text becomes error-prone. TinyTools JSON Parser breaks down payloads into a navigable tree structure, tagging every element with its exact primitive type.

How to Use the JSON Parser

  1. Input JSON: Paste your JSON payload into the left code editor, upload a file, or click Sample.
  2. Inspect Hierarchical Tree: The tree visualizer renders each object and array with expandable/collapsible nodes.
  3. Search Keys & Values: Type in the Filter keys/values search box to filter the tree in real time.
  4. Copy JSONPaths: Click any property key or value to copy its exact JSONPath (e.g., $.headquarters.coordinates.latitude) directly to your clipboard.

The 6 Native JSON Data Types Tagged by Our Parser

Data Type Badge Example Syntax Description
String string "TinyTools" Sequence of Unicode characters wrapped in double quotes.
Number number 42 or 99.95 Integer or double-precision floating point number (no octals or hex).
Boolean boolean true or false Literal truth values (must be lowercase).
Null null null Represents an empty or intentional non-value.
Object object {"key": "value"} Unordered collection of key-value pairs wrapped in braces.
Array array [1, 2, 3] Ordered sequence of zero or more values wrapped in brackets.

Common Developer Use Cases

API Response Debugging

Quickly drill into 5-level deep JSON payloads from Stripe, Shopify, or GitHub REST APIs to locate specific status fields or IDs.

JSONPath Extraction

Avoid manually writing complex path queries by clicking nodes to generate valid JSONPath selectors for Postman tests.

Data Type Verification

Catch subtle data bugs such as numeric IDs serialized as strings ("1001" vs 1001) that break strict backend databases.

Education & Code Reviews

Visually explain object vs array hierarchy to junior developers and inspect schema structure without opening a terminal.

Related JSON Tools

Browse All JSON Tools

JSON Formatter

Format, validate, repair, minify and explore JSON online. JSON runs locally in your browser with tree view, error detection, copy and download options.

JSONPath Tester & Finder

Test JSONPath expressions online and instantly find matching JSON values. Explore JSONPath syntax, filters, arrays and nested properties in your browser.

JSON Repair

Detect syntax errors and automatically repair malformed or invalid JSON online. Fix trailing commas, unquoted keys, and single quotes.

JSON Flattener & Unflattener

Flatten nested JSON into dot notation or unflatten JSON back into nested objects. Free online JSON flattener with custom separators and browser-based processing.

Frequently Asked Questions

What is a JSON Parser?

A JSON parser analyzes a JSON string against RFC 8259 syntax rules and translates it into an in-memory data structure (objects, arrays, and primitive values). TinyTools visualizes this structure as an interactive, searchable hierarchy with explicit data type tags.

What data types does the JSON Parser identify?

The parser tags all 6 standard JSON data types: String, Number (integers and floating points), Boolean (true/false), Null, Object (key-value maps), and Array (ordered lists).

Can I copy the exact JSONPath of any nested node?

Yes. Clicking the path badge next to any property in the tree copies its full dot-notation JSONPath (e.g., $.user.address.city) directly to your clipboard.

Does the JSON parser upload my confidential data?

No. All parsing and DOM tree construction takes place 100% locally in your browser using JavaScript. No payload data is ever transmitted to any remote server.

Can the parser handle large JSON payloads with thousands of nodes?

Yes. TinyTools utilizes optimized DOM rendering and recursive tree navigation, allowing you to comfortably inspect multi-megabyte JSON payloads and filter thousands of nodes in real time.