Security
Security Tools
Free security tools for passwords, hashes, encoding, checks, and browser-safe utilities.
Showing 12 of 12 tools.
Password Generator
Strong random passwords with length and character controls.
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SecurityCRC32 Checksum Calculator
Compute CRC-32 and CRC-32C of text or files with hex, decimal, and byte-order output.
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SecurityDKIM Record Generator
Build, validate, and generate DKIM TXT records with RSA or Ed25519 keypair generation in your browser.
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SecurityDMARC Record Generator
Build a DMARC TXT record from policy, alignment, percentage, and reporting fields, or paste an existing record to validate and explain it.
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SecuritySPF Record Generator
Build and validate SPF DNS records with mechanism qualifiers, IPs, includes, and the 10-lookup limit.
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SecurityText Encryption
Password-based AES-256-GCM encrypt and decrypt with PBKDF2 key derivation.
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SecurityHMAC Generator
Generate and verify HMAC-SHA1, SHA-256, SHA-384, and SHA-512 signatures.
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SecurityMD5 Hash Generator
Compute MD5 checksums of text and files locally with hex and Base64 output.
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SecurityPassphrase Generator
Random-word passphrases with live entropy and crack-time estimates.
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SecurityPassword Strength Checker
Live strength meter with entropy, crack times, and common-password detection.
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SecurityTOTP Generator
Live RFC 6238 TOTP codes with previous, current, and next windows.
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SecuritySHA-256 Hash Generator
Hash text or files with SHA-1, SHA-256, SHA-384, and SHA-512.
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