Browse Tools by Category

Format, validate, beautify, and repair structured data files online. Our data formatting suite provides browser-native tools for JSON, XML, YAML, and CSV payloads with zero server uploads, keeping sensitive configuration files and API responses secure in memory.

Encode and decode Base64, URLs, JWT tokens, and HTML entities securely in your browser. All encoding algorithms conform strictly to RFC specifications (RFC 4648, RFC 3986, RFC 7519) and execute locally with zero network transmission.

Transform, clean, compare, and manipulate text strings safely. Includes case converters, duplicate line removers, diff checkers, and HTML entity handlers designed to streamline everyday developer text workflows.

Write, test, and debug Regular Expressions in real time. Features live syntax highlighting, regex match groups, flag toggles, ReDoS performance protection, and an interactive regex reference sheet.

Convert seamlessly between JSON, CSV, Excel, XML, SQL, and YAML formats. Fast, client-side transformers engineered for software developers, data analysts, and DevOps engineers with full schema fidelity.

Visually build, customize, and preview modern CSS layouts, shadows, gradients, and frosted glass components. Export clean, production-ready CSS rules and Tailwind CSS v4 variables.

Generate cryptographically secure public/private RSA key pairs, SHA hashes, AES ciphers, and Version 4 UUIDs locally using the native W3C Web Cryptography API (window.crypto.subtle).

Compress image files to exact kilobyte targets, convert SVG graphics to React components, and build multi-resolution favicon packages locally using HTML5 Canvas and OffscreenCanvas APIs.

Analyze web metadata, generate compliant robots.txt and XML sitemaps, preview SERP snippets, and audit HTML heading hierarchy to ensure search engine crawlability and indexability.