Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes.

Encrypt and decrypt data using XOR cipher with customizable key.

Generate and verify bcrypt password hashes with configurable cost.

Generate RSA public/private key pairs for encryption.

Create HMAC signatures for message authentication.

Generate cryptographically secure passwords with customizable options.

Generate unique identifiers in UUID v1 or v4 format.

Generate QR codes from text, URLs, WiFi, contacts, and more.

Generate barcodes in Code128, EAN-13, UPC-A, and more formats.

Encode and decode Base64 strings with UTF-8 support.

Convert numbers between binary, octal, decimal, and hexadecimal.

Pick colors and convert between HEX, RGB, HSL formats.

Convert between Unix timestamps and readable dates.

Convert between length, weight, temperature, area, and more.

Convert between bytes, KB, MB, GB, TB with binary/decimal support.

Encode and decode URL strings for safe transmission.

Build and test HTTP requests with custom headers securely.

Check if ports are open on any IP address or hostname.

Query DNS records for any domain name.

Look up domain registration and ownership information.

Check SSL certificate details and expiration.

Look up IP address geolocation and ISP details.

Check domain availability across multiple TLDs with expiry dates.

Generate common Apache .htaccess rules and configurations.

Create robots.txt files to control search engine crawling.

Generate XML sitemaps for better search engine indexing.

Generate SEO meta tags including Open Graph and Twitter cards.

Preview how your content appears on social media platforms.

Build common Git commands with an interactive interface.

Calculate Unix file permissions in symbolic and numeric formats.

Save, organize, and share code snippets with syntax highlighting.

Count words, characters, sentences, and paragraphs.

Convert text between different case formats.

Sort lines alphabetically, numerically, or by length.

Compare two texts and highlight the differences.