Code & Data
Browse 4 collections and 16 tools.
Collections
All tools (16)
JSON to XML
Convert JSON objects, arrays, strings, numbers, booleans, and null values into readable, escaped XML with a configurable root element.
JSON to YAML
Convert valid JSON objects, arrays, and scalar values into deterministic YAML 1.2 with safe quoted strings and keys.
XML Formatter
Format minified or uneven XML with readable indentation while preserving elements, attributes, comments, and declarations.
XML Validator
Check XML for mismatched tags, invalid attributes, malformed declarations, and other well-formedness errors with location details.
YAML Formatter
Format YAML mappings, sequences, flow collections, comments, anchors, and scalar values with consistent indentation.
YAML Validator
Validate YAML and YML syntax, indentation, mappings, sequences, aliases, and duplicate keys with readable error details.
JWT Decoder
Decode JWT headers and payload claims locally without sending tokens to a server.
Regex Tester
Test JavaScript regular expressions against sample text and inspect captures and named groups.
Hash Generator
Generate SHA-256, SHA-512, and SHA-1 cryptographic hashes instantly in your browser.
JSON Formatter & Validator
Format, validate, beautify, and minify JSON strings locally in your browser with precise syntax error messages and instant download controls.
JSON Minifier
Compress and minify JSON data instantly with local syntax error detection.
JSON Payload Analyzer
Inspect and measure JSON payload binary UTF-8 byte size, character count, minification savings, and deep structural metrics in real time.
JSON Payload Generator
Generate valid JSON payloads by target byte size (1 KB to 10 MB or custom amounts) with realistic data structures for API, database, and performance testing.
JSON to TypeScript Converter
Convert JSON payloads into clean, idiomatic TypeScript interfaces or type aliases instantly in your browser.
JSON Validator
Free online JSON syntax validator with precise line and column error reporting.
UUID Generator
Generate cryptographically secure UUID v4 unique identifiers individually or in bulk instantly in your browser.