Security Tools
Generate strong passwords, hash strings, and inspect tokens — all client-side. No data ever leaves your browser.
All Security Tools (14)
Explore our collection of free security tools
Password Generator
✦ FeaturedGenerate strong, secure and random passwords instantly. Keep your accounts safe with our advanced password generator.
Generate PasswordHash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly. Client-side.
Generate HashJWT Generator
Sign HMAC JWTs (HS256/HS384/HS512) for API testing — secret, payload, algorithm, signed token. Pairs with the JWT Decoder for round-trip verify.
Generate JWTMD5 Hash Generator
Generate MD5 hashes from any text — checksums, fingerprints, and legacy compatibility. 100% client-side.
Generate MD5Password Generator
Generate strong, secure and random passwords instantly. Keep your accounts safe with our advanced password generator.
Generate PasswordSHA-256 Hash Generator
Generate SHA-256 hashes and HMAC-SHA256 signatures — the secure standard for file integrity, JWT signing, and API request signatures.
Generate SHA-256Bcrypt Hash Generator
Hash passwords securely using the Bcrypt algorithm.
Hash PasswordBIP-39 Mnemonic Generator
Generate real BIP-39 recovery phrases (12, 15, 18, 21, or 24 words) using cryptographically secure entropy and the official wordlist — plus a checksum validator to sanity-check a phrase you already wrote down. Educational and testing use; never enter a real wallet's seed phrase anywhere.
Generate MnemonicDiceware Passphrase Generator
Generate memorable, high-entropy passphrases from the official EFF Large Wordlist (7,776 words) using your browser's cryptographically secure random number generator — 3 to 12 words, your choice of separator.
Generate PassphraseHTPasswd Generator
Generate .htpasswd entries for Apache and Nginx HTTP Basic Auth using the portable APR1 (Apache MD5) or SHA-1 algorithm — hashed entirely in your browser.
Generate HTPasswdPassword Strength Meter
An entropy-first password meter: see your password's bits of entropy, keyspace size, a 0–100 score, and estimated crack time under five attacker scenarios — live, in-browser.
Measure StrengthRandom UUID Generator
Generate cryptographically random UUIDs (v4), time-ordered UUIDs (v7), or the nil UUID — with uppercase and no-hyphen options, in bulk, right in your browser.
Generate UUIDSecurity Headers Checker
Check any URL's response headers for HSTS, CSP, X-Frame-Options and report grade.
Use ToolSSL Certificate Checker
Check SSL certificate validity, expiry, and details.
Check SSLTOTP 2FA QR Generator
Generate a TOTP secret and otpauth:// QR code for Google Authenticator and Authy.
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