Essential web development tools for developers, designers, and IT professionals. Format JSON, generate hashes, encode/decode data, and more. All tools work directly in your browser with no data sent to servers - ensuring your privacy and security.
Format, validate, and beautify JSON data with syntax highlighting. Detect errors and minify JSON with one click!
Open JSON ToolEncode and decode Base64 strings instantly. Perfect for API testing, data encoding, and web development tasks!
Open Base64 ToolGenerate MD5, SHA1, SHA256, and SHA512 hashes from text or files. Essential for security and data integrity!
Open Hash ToolGenerate UUID v1, v4, and v7 identifiers. Bulk generation, custom formats, and cryptographically secure options!
Open UUID ToolProfessional color picker with HEX, RGB, HSL, HSV support. Color palettes, gradients, and accessibility features!
Open Color ToolEnsure your web content is accessible by checking color contrast ratios against WCAG AA & AAA guidelines.
Open Contrast CheckerBuild, validate, and understand CRON expressions. Get human-readable descriptions for your scheduled tasks.
Open CRON ToolConvert between Unix timestamps, ISO dates, and human-readable formats. Multiple timezone support included!
Open Timestamp ToolComplete HTTP status code reference with descriptions, use cases, and examples. Perfect for API development!
Open HTTP ReferenceTest regular expressions with live validation, match highlighting, and detailed explanations. Perfect for debugging regex patterns!
Open RegEx TesterCompare text files side by side with highlighted differences. Perfect for code reviews and document comparison!
Open Diff ToolInteractive architecture diagram creator with PlantUML and C4 model support. Create mind maps with grouping, expand/collapse, and code generation!
Open Mind Map ToolMinify or beautify your HTML, CSS, and JavaScript code to optimize for production or improve readability.
Open Code ToolGenerate placeholder Lorem Ipsum text for your designs and mockups with various length options.
Open Lorem Ipsum ToolCompress and optimize your images (JPG, PNG, WebP) to reduce file size without losing quality.
Open Image OptimizerEasily encode or decode URLs and URL components to ensure they are safe and correctly formatted.
Open URL ToolCreate favicons (favicon.ico, PNGs for different devices) from your source image quickly and easily.
Open Favicon ToolView 3D models (FBX, GLB, GLTF, USDZ*) directly in your browser. No server upload required!
*Some USDZ files may not be supported.
All processing happens locally in your browser. No data is sent to our servers, ensuring complete privacy and security for your sensitive information.
Instant results with no loading times. Our tools work offline and are optimized for performance, making your development workflow more efficient.
Responsive design that works perfectly on desktop, tablet, and mobile devices. Access your tools anywhere, anytime.
No subscriptions, no hidden costs, no sign-ups required. Professional-grade developer tools available to everyone for free.