Dev Tools

Encode and decode Base64 strings securely in your browser with online free Base64 Converter tool.

Visual CSS border-radius generator. Customize corners individually, preview in real-time, and copy CSS code. Supports px, %, em, and rem units.

Create beautiful, layered CSS box-shadows visually. Customize blur, spread, color, and opacity. Copy instantly for your website or app. Supports inset shadows.

Calculate Unix file permissions with an interactive chmod calculator. Convert between octal (755) and symbolic (-rwxr-xr-x) formats.

Check color contrast ratio between foreground and background colors. Ensure your design meets WCAG 2.1 AA and AAA accessibility standards.

Convert colors between HEX, RGB, HSL, CMYK, and CSS color names. View color previews and copy formats easily.

Generate beautiful, harmonious color palettes from any base color. Create complementary, triadic, tetradic, and analogous color schemes using free online Color Palette Generator tool.

Validate credit card numbers using the Luhn checksum algorithm and detect the card issuer. Safe and secure, client-side validation for Visa, Mastercard, Amex, and more.

Quickly and easily generate cron schedule expressions for your cron jobs using free online Crontab Generator tool.

Create CSS @keyframes animations visually with a drag-and-drop timeline. Preview in real-time, customize timing functions, and export production-ready code.

Free online CSS minifier and beautifier. Compress CSS files to improve page load speed or format messy stylesheets for better readability.

Validate email address syntax and format instantly with comprehensive checking.

Create beautiful CSS gradients visually. Generate linear, radial, and conic gradients with unlimited color stops. Copy cross-browser CSS instantly.

Compare two hashes to see if they match. Useful for verifying file integrity or password hashes using free online Hash Comparator tool.

Generate HMACs (MD5, SHA1, SHA256, SHA512) securely in your browser using free online HMAC Generator tool.

Free online HTML entity encoder and decoder. Convert special characters to safer HTML entities (like < to &lt;) or decode them back to text. Essential for web security and data cleaning.

Minify and beautify HTML code online. Compress your HTML files or format them for readability with custom indentation.

Validate International Bank Account Numbers (IBAN) using the ISO 7064 Mod 97-10 algorithm. Check IBAN format and checksum validity for over 70 countries.

Instantly check your public IP address, location, and ISP details. Resolve domain names to IPs with our free, secure, and accurate IP lookup tool.

Free online JavaScript minifier and beautifier. Compress JS files to reduce size or format messy code for better readability. Support for ES6+ syntax.

Compare two JSON objects side-by-side and highlight differences. Visualize added, removed, and modified keys with our free JSON Diff tool.

Format, beautify, minify, and validate JSON data online using free online JSON Formatter & Validator tool.

Convert JSON objects into TypeScript interfaces or types instantly. Features smart type inference, customizable naming, and client-side processing for privacy.

Convert between JSON and YAML formats instantly. Bi-directional conversion, syntax validation, and live preview. Perfect for DevOps, developers, and configuration management.

Decode JSON Web Tokens (JWT) to inspect headers and payloads without sending them to a server.

Generate MD5 hashes from any text. Secure client-side processing.

Generate SEO-friendly meta tags, Open Graph tags, and Twitter Cards for your website instantly. Free, secure, and easy-to-use meta tag builder.

Convert numbers between Decimal, Binary, Octal, and Hexadecimal in real-time. Free, fast, and works entirely in your browser.

Check how secure your password is and get tips to improve it with our free client-side tool.

Make fair decisions instantly with our free Random Choice Picker and Spinning Wheel. Perfect for raffles, giveaways, or deciding what to eat.

Test and debug your regular expressions with this online regex tester. Supports JavaScript RegExp flavor with real-time highlighting.

Generate SHA-256 hashes securely in your browser. Fast, free, and privacy-focused online SHA-256 calculator tool.

Free online SQL formatter and beautifier. Indent, prettify, and minify your SQL queries. Supports standard SQL syntax with uppercase options.

Encode and decode URLs easily using this online tool.

Identify browser, operating system, and device details from any user agent string.

Generate version 1, 3, 4, 5, and 7 UUIDs instantly. Create random, time-ordered, timestamp-based, or namespace-based UUIDs.

Generate WhatsApp share links instantly. Create wa.me links with custom messages for easy sharing.

Format and beautify XML code online. Free tool to indent, validate, and minify XML with syntax highlighting and error detection.

Convert YAML to JSON and JSON to YAML instantly. Validate syntax, handle complex structures, and process data securely in your browser.