Hash & Security

AES Encryption / Decryption

Encrypt/decrypt text with AES-256-CBC and AES-256-GCM

API Key Generator

Generate random API keys with customizable prefix, format, and separators

Argon2 Hash Generator

Generate Argon2id password hashes with configurable memory/time/parallelism

Base58 Encoder/Decoder

Encode hex to Base58 and Base58Check (Bitcoin format with version byte and double-SHA-256 checksum), decode Base58 strings back to hex with version byte detection

Base62 Encoder/Decoder

Encode hex to Base62 (0-9a-zA-Z) for URL-safe compact identifiers and short codes, decode Base62 strings back to hex. All computation is client-side

Bcrypt Generator

Generate bcrypt password hashes with adjustable cost factor

BIP39 Mnemonic Generator

Generate BIP39 mnemonic seed phrases with 12/18/24 words using cryptographically secure entropy and SHA-256 checksum, compatible with all HD wallets

Bitcoin Address Validator

Validate Bitcoin addresses (P2PKH, P2SH, Bech32, Bech32m) with Base58Check and Bech32 checksum verification, address type detection, and network identification

BLAKE3 Hash Generator

Generate BLAKE3 hash digests from text with configurable output length and keyed hashing support

CRC32 Checksum Calculator

Calculate CRC32, CRC32C, and Adler32 checksums for data integrity verification

CSP Header Generator

Generate Content Security Policy HTTP headers with visual directive builder and presets

CSR Decoder

Decode CSR details — subject, public key algorithm/size, signature, SANs, and key usage extensions

CSR Generator

Generate Certificate Signing Requests with RSA or ECDSA keys and custom distinguished name

DKIM Record Generator

Generate DKIM DNS TXT records for email signing with selector, key type, and key length. All computation is client-side

DMARC Record Generator

Generate DMARC DNS TXT records with policy (none/quarantine/reject), RUA/RUF reporting, alignment, and percentage. All computation is client-side

Ethereum Address Validator

Validate Ethereum addresses with EIP-55 checksum verification, format detection (mixed-case, lowercase, uppercase), and correct checksummed address suggestion

File Hash Checker

Compute file checksums with MD5, SHA1, SHA256, SHA512, and CRC32

Hash Checker

Compare and verify hashes

Hash Type Identifier

Identify hash algorithms from a hash string

HMAC Generator

Generate HMAC signatures

Homoglyph Detector

Detect homoglyph Unicode characters used in domain spoofing and homograph attacks. Scans for Cyrillic, Greek, accented Latin, number, fullwidth, and mathematical symbol lookalikes with position highlighting, Unicode block identification, and automatic text normalization

HTML Sanitizer

Sanitize and clean HTML input by stripping XSS vectors, scripts, and unwanted tags

JWT Token Generator

Generate signed JWT tokens with custom claims and algorithm selection

JWT Token Verifier

Decode and verify JWT token signatures with HMAC, RSA, and ECDSA

Keccak-256 Hash Generator

Generate Keccak-256 (Ethereum) hashes from text or hex input using pure JavaScript, compatible with web3.js and ethers.js

MD5 Hash Generator

Generate MD5 hashes

Multiple Hash Generator

Generate multiple hash types at once

NanoID Generator

Generate NanoID strings with customizable length, alphabet presets, and optional prefix. Uses Web Crypto API for cryptographically secure random values

NFT Metadata Generator

Generate ERC-721 and ERC-1155 compliant JSON metadata for NFTs with name, description, image, attributes/traits, animation URLs, and background color

OAuth 2.0 Token Tester

Decode and inspect OAuth 2.0 access tokens (JWT). View header, payload, standard claims (iss, sub, aud, exp, iat), and token validity status

OpenSSL Command Generator

Generate OpenSSL commands for certificates, keys, encryption, and format conversion

Password Leak Checker

Check if your password has been leaked in known data breaches using k-anonymity API

Password Strength Checker

Check password strength with real-time score, entropy, and suggestions

PBKDF2 Hash Generator

Generate PBKDF2 password hashes with configurable iterations, key length, salt length, and hash algorithm (SHA-256/SHA-384/SHA-512) using Web Crypto API

PEM Viewer

Decode PEM-encoded certificates, RSA/EC private keys, and CSRs with human-readable field details

PGP Key Generator

Generate PGP public/private key pairs with configurable identity, email, and expiration date

Phishing URL Detector

Analyze URLs for phishing indicators, suspicious patterns, and security red flags. Checks for suspicious TLDs, IP address domains, lookalike domains, URL shorteners, excessive subdomains, @ symbol, suspicious keywords, missing HTTPS, non-standard ports, and hyphen-heavy domains

Random Token Generator

Generate cryptographically secure random tokens in multiple formats

RSA Key Generator

Generate RSA public/private key pairs in PEM format

Salt Hash Generator

Generate salted password hashes with random or custom salt

Security Headers Checker

Check HTTP security headers of any URL including CSP, HSTS, X-Frame-Options, and CORS

SHA1 Hash Generator

Generate SHA-1 hashes

SHA256 Hash Generator

Generate SHA-256 hashes

SHA3 Hash Generator

Generate SHA-3 hashes

SHA512 Hash Generator

Generate SHA-512 hashes

SPF Record Generator

Generate SPF DNS TXT records with include, ip4, ip6, a, mx, ptr, exists, and all mechanisms. All computation is client-side

SRI Hash Generator

Generate Subresource Integrity (SRI) hashes (SHA-256, SHA-384, SHA-512) for CDN resources with integrity attribute generation and full HTML tag examples. All computation is client-side using the Web Crypto API

SSH Key Generator

Generate SSH key pairs with RSA, ED25519, and ECDSA algorithms and optional passphrase

SSL Certificate Checker

Decode and inspect SSL/TLS certificate details including expiry, issuer, SAN, and chain

TLS Cipher Suite Explorer

Browse, search, and compare TLS cipher suites with Mozilla security classification (Modern/Intermediate/Old), OpenSSL & IANA names, key exchange, authentication, encryption, and hash details. Filter by security level and protocol version. All data is embedded client-side

TOTP Authenticator Generator

Generate TOTP secrets and QR codes compatible with Google Authenticator and Authy

X.509 Certificate Viewer

Inspect X.509 certificate details — subject, issuer, validity, serial, key info, extensions, SAN, key usage, and SHA-256/SHA-1 fingerprints