Crypto & Security Tools

Free online cryptography and security tools. Generate UUIDs, hash text with MD5/SHA-256/SHA-512, create secure passwords, and generate JWT tokens. 100% client-side.

4 free tools1 popularNo sign-up

UUID GeneratorGenerate secure random UUIDs (v4)JWT GeneratorCreate custom signed JWT payloads Hash GeneratorGenerate MD5, SHA-256 and SHA-512 hashes Secure Password GeneratorGenerate strong random password strings

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