Free, privacy-friendly online tools for developers: JSON Formatter, Base64, ASCII, Image Compression, Markdown Editor, QR Code, Favicon Generator, Regex, JWT, URL Encoder, Python Compiler, SQL Editor, HTML/CSS Playground, AI Code Generation, Tailwind, YAML, Webhook, Hash, CSS Gradient, IP/DNS, Color, Diff Checker, AI Commenter. No server logs, all runs client-side.