Security & Cryptography Suite
Password Entropy, AES-GCM, RSA Pairs, Bcrypt, Subnet Masks & CSP Headers
Password Entropy & Brute-Force Time Analyzer
Analyze password strength, calculate Shannon entropy in bits, and estimate time required to crack via GPU clusters.
SHA-256 / SHA-512 Hash Checksum Generator
Calculate cryptographic SHA-256 and SHA-512 hashes for text and files.
MD5 & SHA-1 Hash Generator (Legacy Checksum)
Generate MD5 and SHA-1 checksums for legacy file validation.
HMAC Signature Generator (SHA-256 / SHA-512)
Calculate keyed-hash message authentication codes (HMAC).
AES-GCM 256-Bit Encryptor & Decryptor
Client-side authenticated symmetric encryption with 256-bit keys.
RSA 2048/4096-Bit Public & Private Key Generator
Generate PEM-encoded RSA key pairs in your browser via WebCrypto.
Secure Passphrase Generator (Diceware CSPRNG)
Generate memorable, high-entropy multi-word Diceware passphrases.
Bcrypt Hash Cost & Salt Simulator
Calculate Bcrypt work factor iterations and salt configurations.
SSL / TLS Certificate CSR Decoder
Inspect and decode Certificate Signing Requests (CSR) and X.509 certs.
Random Hex & Base64 Secret Key Generator
Generate 128-bit, 256-bit, and 512-bit cryptographically random keys.
Content Security Policy (CSP) Builder
Build strict Content-Security-Policy directives to eliminate XSS risks.
Subresource Integrity (SRI) Hash Generator
Generate sha384 and sha512 integrity attributes for CDN scripts.
Bcrypt / Argon2 Entropy Comparison
Compare memory and CPU resistance against GPU cracking attacks.
Port Number Lookup & Protocol Reference
Search common and registered TCP/UDP port numbers and vulnerabilities.
Private IP Range & Bogon IP Filter
Identify RFC 1918 private IP addresses and loopback ranges.
File Checksum Verifier (SHA-256)
Compute and verify cryptographic SHA-256 checksums of local files.
HTPasswd Password Hash Generator
Generate Apache htpasswd compatible MD5, SHA1, and Bcrypt hashes.
OTP / TOTP Secret Key & QR Code Builder
Generate 2FA TOTP authenticator secrets and QR code URIs.
DNSSEC Record Validator & Key Visualizer
Understand DS, DNSKEY, and RRSIG records in DNSSEC security.
Credit Card Luhn Algorithm Validator
Test numerical validity of payment card numbers via Luhn formula.
Ed25519 Keypair Generator & Signature Tester
Generate Ed25519 Edwards-curve keypairs, sign arbitrary payloads, and cryptographically verify digital signatures.
Base58 (Bitcoin & IPFS) Encoder & Decoder
Encode strings and binary hex to Base58 and Base58Check or decode Bitcoin addresses and IPFS multihashes.
BIP-39 Mnemonic Seed Phrase & Entropy Generator
Generate 12-word and 24-word cryptographically secure BIP-39 mnemonic seed recovery phrases with SHA-256 checksums.
HTTP Security Headers & CSP Level 3 Policy Builder
Generate hardened HTTP security headers: Content-Security-Policy (CSP Level 3), HSTS, Permissions-Policy, and X-Frame-Options.