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Encrypt and decrypt text using Vigenere cipher. Free online tool for polyalphabetic cryptography in your browser.
Todas las herramientas de seguridad se ejecutan localmente sin enviar datos al exterior. La generación de contraseñas, el cálculo de hashes y otras operaciones sensibles se realizan completamente en tu navegador.
When testing security tools, sending sensitive data like passwords or tokens to a remote server defeats the purpose. We built this tool to run entirely in your browser using the Web Crypto API — your data never leaves your device.
Sí, completamente gratuita y sin registro.
Sí, funciona en navegadores móviles con soporte táctil.
Seguridad
Completamente seguras. Todas las verificaciones se ejecutan localmente en tu navegador sin enviar solicitudes ni datos al exterior.
ToolPure supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hash algorithms. All hashing is performed locally using the Web Crypto API, ensuring your data never leaves your browser.
Yes, you can decode JWT tokens to inspect header and payload, and generate new JWT tokens with custom claims. The tool supports HS256, HS384, and HS512 signing algorithms.
Yes, password generation uses the Web Crypto API getRandomValues() function, which provides cryptographically secure random numbers. Generated passwords are not stored or transmitted anywhere.
🔒 Privacy: All processing happens locally in your browser. Your files and data never leave your device — no upload, no server, no tracking.