Free Security Tools Online
8 free Security tools. Generate and inspect secrets safely, entirely on your device. No signup, runs in your browser.
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•••Secure Password Generator
Generate strong random passwords using the Web Crypto API.
Security•••SHA Hash GeneratorGenerate SHA-1, SHA-256 or SHA-512 hashes locally.
Security•••JWT DecoderDecode JSON Web Token header and payload (no verification).
Security•••Password Strength CheckerEstimate password strength and entropy without sending it anywhere.
Security•••HMAC GeneratorCreate HMAC signatures with SHA-256, SHA-1 or SHA-512.
Security•••Random Token & API Key GeneratorGenerate secure random tokens in hex or base64url.
Security•••Caesar Cipher / ROT13Encode or decode text with a Caesar shift. For learning, not real security.
Security•••Passphrase GeneratorGenerate memorable passphrases from random words.
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