Cryptography & security

Generate secure WiFi passwords for WEP, WPA, WPA2, and WPA3 networks. Create strong wireless network passwords with customizable length and character options.

Hide parts of text with asterisk or custom symbols. Mask sensitive information like credit cards, emails, or any text with flexible masking modes.

Check passwords against OWASP recommendations and common weakness patterns.

Generate RSA key pairs for cryptographic purposes with different key sizes and formats.

Extract signatures and files from ASICE (Associated Signature Containers) files.

Decode and inspect JWT tokens.

Transform JavaScript code to make it difficult to understand and reverse-engineer while preserving functionality

Calculate check digits using ISO 7064 MOD 97-10 algorithm. Commonly used for IBAN and LEI validation.

Deobfuscate and clean up obfuscated JavaScript code using AI

Generate and validate BIP39 mnemonic phrases for cryptocurrency wallets. Create secure recovery phrases with 12-24 words, convert between entropy and mnemonics, and derive cryptographic seeds with optional passphrases.

Generate secure OpenPGP key pairs (ECC or RSA) with public key, private key, and revocation certificate for encryption and digital signatures

Generate self-signed SSL/TLS certificates for local development and testing. Create X.509 certificates with customizable validity, key size, and subject details.

Encrypt and decrypt text using AES-128, AES-192, or AES-256 encryption with a secret key.

Validate Bitcoin addresses and detect address type (Legacy, SegWit, Taproot) and network (Mainnet, Testnet)

Validate Ethereum addresses and check EIP-55 checksum encoding

Verify and extract digital signatures from PDF files. Check certificate authenticity, integrity, and validity.

Analyze and inspect X.509 SSL/TLS certificates. View certificate details including subject, issuer, validity period, extensions, key usage, and fingerprints.

Sign and unsign HTTP cookie values using HMAC-SHA256 for secure session management and data integrity verification

Redact and mask sensitive data in JSON objects like passwords, API keys, tokens, emails, and personal information. GDPR-compliant data sanitization.

Generate a random port number in the IANA private range (49152–65535) for WireGuard VPN, with an option to exclude the default port 51820

Encrypt and decrypt Ansible Vault secrets directly in the browser using AES-256

Analyze password strength with entropy calculation, character composition, and actionable security suggestions.

Remove tracking parameters, UTM tags, and unnecessary clutter from URLs for cleaner, privacy-friendly links

Generate SSH key pairs (Ed25519, RSA) in OpenSSH format for secure server authentication