JSON

JSON Converter

Convert JSON arrays into CSV, TSV, HTML, or XML.

Input

Supports arrays of objects, arrays (first row as headers), or a single object.

Output

Paste JSON, choose a format, then convert.

Output format: CSV

What

JSON Converter definition

This tool converts JSON arrays or objects into tabular formats like CSV, TSV, HTML, or XML.

Cases

Use Cases

Export API responses to spreadsheets

Turn JSON into Markdown/HTML tables for docs

Prepare data for BI tools that expect CSV/TSV

How To

How to Convert JSON to Other Formats

A step-by-step guide to transforming JSON into CSV, TSV, HTML, or XML.

Paste JSON

Paste an array of objects into the input field.

Select format

Choose CSV, TSV, HTML, or XML as the output format.

Convert and copy

Click Convert, then copy the result.

Knowledge

Understanding JSON Format

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format. It's easy for humans to read and write, and easy for machines to parse and generate. Despite its name, JSON is language-independent.

JSON Data Types

JSON supports six data types: strings (double-quoted), numbers (integer or floating-point), booleans (true/false), null, arrays (ordered lists in []), and objects (key-value pairs in {}). Keys must be strings.

JSON vs XML

JSON is more compact and easier to parse than XML. It has native support in JavaScript and most modern languages. XML offers more features (attributes, namespaces, schemas) but is more verbose.

Common JSON Pitfalls

Trailing commas are invalid in JSON. Keys must be double-quoted (not single). Large numbers (>2^53) may lose precision in JavaScript. Comments are not allowed in standard JSON.

JSON Schema

JSON Schema is a vocabulary for annotating and validating JSON documents. It defines data types, required fields, value constraints, and structure patterns. Useful for API documentation and validation.

FAQ

JSON converter FAQ

What JSON format should I paste?

Use a JSON array of objects or arrays; the first item defines headers. A single object also works.

Why convert JSON to CSV/TSV/HTML?

Spreadsheets, BI tools, or sharing as tables often require tabular CSV/TSV or HTML outputs.

How are nested fields handled?

Nested objects or arrays are stringified. Flatten complex structures first for predictable columns.

What about large numbers or IDs?

Keep IDs as strings if they exceed JavaScript's safe integer range to avoid rounding when converting or re-importing.

Where did JSON originate?

JSON was popularized in the early 2000s by Douglas Crockford as a lightweight data-interchange format for JavaScript.

How popular is JSON now?

JSON is the dominant web and API format, topping language rankings for data exchange thanks to its simplicity and native browser support.

What are common JSON use cases?

REST/GraphQL APIs, configuration files, NoSQL documents, and log payloads frequently rely on JSON.

Any maintenance tips for JSON data?

Validate schemas, avoid trailing commas, and stringify large integers or precise decimals to prevent loss when parsing across languages.

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