Utilities for web developers.
Base64 encoder and decoder for text and files with drag & drop support. URL-safe encoding, live preview, and multi-line processing for web development and APIs.
URL encoder and decoder for query parameters and components. Parse protocol, host, path. Support for encodeURI and encodeURIComponent methods
Encode and decode HTML entities. Convert special characters to HTML entity codes and vice versa with support for named and numeric entity references.
Decode and analyze JSON Web Tokens (JWT) with detailed header, payload, and signature inspection. Validates JWT structure and provides Base64 decoding insights.
Convert international domain names to Punycode and back. IDN converter supporting Unicode domains for DNS compatibility and email address encoding.
Format, validate and beautify JSON with syntax highlighting. Minify JSON, view tree structure, and detect errors. in your browser with privacy.
Beautify and format HTML, CSS, JavaScript, XML, SQL code. Supports multiple languages with syntax highlighting and customizable indentation options.
Convert between JSON, XML, YAML, CSV, and TOML formats with syntax validation. Real-time format conversion with error detection and structure preservation.
Convert pixels to rem units for responsive CSS. PX to REM calculator with custom base font size, batch conversion and live preview for web development.
Calculate missing dimensions from aspect ratios. Generate CSS code with modern aspect-ratio property or legacy padding-bottom technique. Includes 16:9, 4:3, 21:9 presets.
Generate v1, v4, v7 UUIDs using cryptographically secure random numbers. Bulk generation with format validation and NIL UUID support for databases and APIs.
Create strong, random passwords with customizable length and character sets. generator with strength meter and multiple password generation.
Generate MD5, SHA-1, SHA-256, SHA-512 hashes for text and files. cryptographic hash generator with HMAC support and file integrity verification
Generate Lorem Ipsum placeholder text with customizable paragraphs, words, sentences. HTML formatting and list structures for web design mockups and layouts.
Create custom QR codes. QR code generator supporting URLs, text, WiFi, vCard with SVG/PNG download, color customization and error correction.
Escape and unescape strings for HTML, JavaScript, JSON, SQL, CSV, XML. String escaping tool with syntax highlighting and multi-format conversion for developers.
Complete HTML character entity reference with 2,231+ symbols, arrows, and mathematical operators. Search by name, decimal, hex, or Unicode for web development.
Searchable emoji reference with Unicode codes and categories. Browse, search and copy emojis. with skin tone variations and detailed emoji information.
Test regular expressions with real-time pattern matching and highlighting. Supports JavaScript, Python, PHP flavors with capture groups and flags analysis.
