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Home › All Tags › # Data

# Data

Data format conversion, parsing and query tools.

Tools with this tag · 29 tags
Related Articles

Why JSON: The Advantages of a Universal Data Format

Simple, cross-language, fast to parse, with a mature tool ecosystem — JSON became the default for APIs and config files thanks to these traits. Here are its core advantages and use cases.

2026-08-28Read More →

JSON Guide: Format, Validate and Convert

JSON error driving you mad? API responses hard to read? This guide shows how to format, minify and validate JSON, plus convert between JSON, CSV, YAML and XML — all free on HeronTool.

2026-08-28Read More →

The History of JSON: From JavaScript to the Lingua Franca of APIs

In 2001 Douglas Crockford distilled a minimal data format from JavaScript object literals. Two decades later it became the common language of internet APIs. Here is the story of JSON's birth, standardization and rise.

2026-08-28Read More →
Text Tools 2
Extract Phones Extract phone numbers from text. Data List Converter Convert a line list to comma, tab or JSON array format. Data
Image & Media 1
Barcode Generator Generate common 1D barcodes. Data
Dev Tools 21
JSON Formatter Pretty-print, minify or validate JSON and spot errors. Data JSON Validator Check if JSON is valid and locate errors. Data JSON Minify Remove whitespace to minify JSON. Data JSON to CSV Convert a JSON array to CSV. Data CSV to JSON Convert CSV to a JSON array. Data XML Formatter Pretty-print and indent XML. Data XML to JSON Convert XML nodes to JSON. Data SQL Formatter Format and indent SQL. Data User-Agent Parser Parse a browser User-Agent string. Data MIME Lookup Look up MIME type by extension. Data JSONPath Extract fields from JSON via JSONPath. Data JSON to YAML Convert JSON to a clean YAML document. Data YAML to JSON Convert YAML to readable JSON. Data TOML to JSON Convert TOML config to JSON. Data JSON to TOML Convert JSON to TOML config format. Data JSON to XML Convert JSON objects to XML markup. Data JSON to TypeScript Generate TypeScript interfaces from JSON. Data JSON Viewer View JSON as an indented tree with types. Data IPv4 Range Expander Expand an IP range into the full list of addresses. Data Device Information Inspect your browser, OS, screen and hardware info. Data IBAN Validator Validate and parse an International Bank Account Number. Data
SEO & Marketing 1
JSON-LD Generate JSON-LD structured data. Data
Life & Office 3
Unit Converter Convert length, weight, temperature and area units. Data Temperature Converter Convert between Celsius, Fahrenheit and Kelvin. Data Chinese ID Validator Validate a Chinese ID number and extract info. Data
Math Tools 1
Matrix Add, multiply, transpose matrices. Data