Product line15 tools
Free Online Security Tools
Free cryptographic and security tools that run entirely in your browser. Generate MD5 and SHA-256 hashes from text or files, create cryptographically secure random passwords with custom character sets, and evaluate password strength with entropy analysis and crack-time estimates — all without sending any data to a server.
FreeNo sign-upRuns in your browser
01MD5 Hash GeneratorGenerate MD5 hash digests from text or files online for free. Useful for checksums, data integrity verification, and legacy systems. No signup required.02SHA-256 Hash GeneratorGenerate SHA-256 cryptographic hashes from text or files online for free. Industry-standard hashing for security and data integrity. No signup required.03Password GeneratorGenerate strong, random passwords online for free. Customize length, character types, and security level for maximum protection. No signup required.04Password Strength CheckerCheck how strong your password is online for free. Get a detailed security score, estimated crack time, and improvement suggestions. No signup required.05AES Text EncryptionEncrypt and decrypt text with AES-256-GCM and a passphrase. Runs entirely in your browser — neither the message nor the passphrase is ever transmitted.06bcrypt Generator & VerifierGenerate bcrypt password hashes with a configurable cost factor, or verify a password against an existing hash. Runs in your browser, nothing uploaded.07TOTP / 2FA Code GeneratorGenerate time-based 2FA codes from a Base32 secret, with a live countdown and an otpauth:// URI for authenticator apps. Runs in your browser.08File Checksum VerifierCompute SHA-256, SHA-512, SHA-1 and CRC32 for any file and compare against an expected checksum. The file is hashed on your device, never uploaded.09RSA & EC Key Pair GeneratorGenerate RSA or elliptic curve key pairs in PEM and JWK format using the Web Crypto API. Keys are created in your browser and never transmitted.10JWT Generator & SignerCreate and sign JSON Web Tokens with HS256, HS384 or HS512, including expiry, issuer and audience claims. Signed in your browser, nothing uploaded.11SHA-1 & CRC32 GeneratorGenerate SHA-1 and CRC32 checksums from text, in hex and decimal. For legacy verification only — both are unsuitable for security. Free, runs locally.12htpasswd GeneratorGenerate an Apache or Nginx .htpasswd file with bcrypt hashes for multiple users. Runs in your browser — passwords are never transmitted.13SHA-512 Hash GeneratorGenerate SHA-512 and SHA-384 hashes online for free using the Web Crypto API. Hash text instantly in your browser. No uploads, no signup required.14HMAC GeneratorGenerate HMAC-SHA256 and HMAC-SHA512 signatures from a secret key and message online for free. Runs via Web Crypto in your browser. No signup required.15Passphrase GeneratorGenerate secure, memorable word-based passphrases online for free. Choose word count, separators, and numbers — XKCD style. No signup required.
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