Generate hashes, encode and decode base64, JWT, hex, binary, and manage cryptographic security tools.
Generate Code 128, EAN, and UPC barcodes instantly in your browser with SVG export.
Convert numbers simultaneously between Binary, Octal, Decimal, and Hexadecimal formats instantly in your browser.
Encode plain text into Base32 format and decode Base32 strings back to plain text instantly in your browser.
Encode plaintext strings into Base64 or safely decode Base64 encoded strings instantly in your browser.
Convert Base64 encoded strings or data URLs into image previews and download them instantly in your browser.
Generate secure cryptographic password hashes and verify plain text credentials instantly in your browser.
Convert plain text strings into binary code (0s and 1s) and binary back to text instantly in your browser.
Escape and unescape strings for safe embedding in HTML, CSS, and JavaScript source code.
Generate and configure Cross-Origin Resource Sharing (CORS) HTTP headers for secure API and server responses.
Validate credit card numbers using the Luhn algorithm and detect card brands instantly in your browser.
Perform live DNS record lookups (A, AAAA, MX, CNAME, TXT) via secure DNS-over-HTTPS providers instantly.
Obfuscate email addresses using HTML entities, JavaScript encoding, and CSS tricks to prevent spam bot harvesting.
Calculate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes of local files securely in your browser.
Generate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-512) for passwords and text strings instantly in your browser.
Convert plain text ASCII strings into Hexadecimal code and Hex back to ASCII text instantly in your browser.
Generate secure HMAC-SHA256 and HMAC-SHA512 cryptographic hashes with custom secret keys instantly in your browser.
Generate and verify HMAC signatures (SHA-256, SHA-512) for webhook payloads and API authentication instantly.
Generate Apache .htaccess redirect and rewrite rules for 301 permanent redirects, domain movements, and SSL enforcement instantly.
Encode special characters into safe HTML entities or decode entity strings instantly in your browser.
Convert PNG, JPEG, WebP, or GIF images into Base64 strings and Data URLs instantly in your browser.
Decode JSON Web Tokens (JWT) instantly in your browser to inspect header parameters, payload claims, and expiration status.
Sign, verify, and inspect JSON Web Tokens (JWT) using HMAC (HS256/HS512) algorithms instantly in your browser.
Convert Octal base-8 numbers into Decimal base-10 and Decimal back to Octal instantly in your browser.
Generate secure, random passwords with custom character sets, lengths, and entropy calculations instantly.
Evaluate password strength visually with real-time feedback, entropy metrics, and security criteria check.
Generate high-resolution QR codes for text, URLs, and data instantly in your browser with SVG export.
Encode and decode text using the classic ROT13 substitution cipher algorithm instantly in your browser.
Generate secure RSA public and private key pairs (PEM format) instantly in your browser.
Decode PEM-formatted SSL/TLS certificates into structured JSON attributes and verify cryptographic details instantly in your browser.
Convert Unix epoch timestamps to human-readable dates and normal dates to timestamps instantly in your browser.
Encode special characters into URL-safe percent-encoding or safely decode encoded URL strings instantly.
Encode text to URL-safe Base64 format and decode URL-safe Base64 strings instantly in your browser.
Generate universal unique identifiers (UUID version 1, 3, 4, 5) with custom namespaces and bulk support instantly.