Developer Tools
JSON, encoding, hashing and regex utilities for everyday development.
JSON Formatter & Validator
Format, minify and validate JSON with clear error messages and adjustable indentation.
Developer ToolsBase64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text, with correct handling of Unicode characters.
Developer ToolsURL Encoder / Decoder
Percent-encode or decode URLs and query string components.
Developer ToolsHTML Encoder / Decoder
Convert text to HTML entities or decode HTML entities back to plain text.
Developer ToolsUUID Generator
Generate random UUID v4 values using your browser’s cryptographically secure random number generator.
Developer ToolsTimestamp Converter
Convert between Unix timestamps and human-readable dates, in both seconds and milliseconds, local time and UTC.
Developer ToolsRegex Tester
Test regular expressions against sample text with live match highlighting and capture groups.
Developer ToolsHash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text using your browser’s built-in cryptography.
Developer Tools