Security
Security Tools
Free security tools for passwords, hashes, encoding, checks, and browser-safe utilities.
Showing 24 of 42 tools.
Password Generator
Strong random passwords with length and character controls.
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SecurityCVSS Calculator
Score a vulnerability with the CVSS v3.1 metrics and get the base score, severity, and vector string.
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SecurityHOTP Generator
Counter-based RFC 4226 HOTP codes with a resync lookahead window and verify.
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SecurityBcrypt Generator and Verifier
Hash a password with bcrypt at any cost, or verify a password against a bcrypt hash.
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SecurityPIN Generator
Secure random numeric PINs with length presets, batch output, and weak-code filters.
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SecurityPronounceable Password Generator
Speakable, easy to remember passwords with honest entropy and crack-time estimates.
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SecurityXOR Cipher
Repeating-key XOR encrypt and decrypt with text, hex, and Base64 input and output.
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SecuritySHA-3 Hash Generator
Hash text or files with every SHA-3 variant and the original Keccak-256 and Keccak-512.
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SecurityGitHub Webhook Signature Verifier
Verify X-Hub-Signature-256 against the body and secret with a full digest diff.
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Securityotpauth URI Parser
Decode otpauth:// TOTP and HOTP setup URIs with live code preview and validation.
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SecurityPassword Policy Generator
Build a password policy. Output the rules, a regex, an HTML pattern, and sample compliant passwords.
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Security2FA QR Code Generator
Build the otpauth provisioning URI and scannable QR for any 2FA authenticator app.
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SecurityCAA Record Generator
Build a CAA record from allowed CAs and iodef contacts, or parse an existing record to validate and explain it.
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SecurityBackup Codes Generator
Random recovery codes in the styles real 2FA providers issue. Copy or download as a .txt file.
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SecurityDisposable Email Checker
Flag temp and burner email addresses against a curated disposable-domain list.
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SecurityAPI Key Generator
Random API keys and secrets in hex, Base64, Base64URL, or custom alphabets with framework presets.
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SecurityPIN Code Generator
Random 3 to 12 digit PINs with weak-pattern filtering and copy controls.
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SecurityCrypto Address Validator
Check that a crypto wallet address has a valid format and checksum before you send.
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SecurityCSR Decoder
Decode PKCS#10 CSRs: subject, SANs, key, extensions, fingerprints, signature check.
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SecurityJWK to PEM Converter
Convert JWK to PEM (SPKI / PKCS#8) and PEM to JWK for RSA, EC, and Ed25519 keys.
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SecurityPBKDF2 Generator
Derive PBKDF2-HMAC keys with SHA-1, SHA-256, SHA-384, or SHA-512 and OWASP iteration presets.
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SecurityPEM Public Key Inspector
Decode PEM public keys: RSA modulus, EC curve, JWK, SSH line, fingerprints.
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SecurityRSA and EC Key Pair Generator
Generate RSA, EC, and Ed25519 key pairs in PEM and JWK with a SHA-256 fingerprint.
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SecurityPassword Entropy Calculator
Bits of entropy, possible combinations, and brute-force time at four attacker rates.
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