AES Encrypt / Decrypt

About this AES Encrypt / Decrypt

AES Encrypt / Decrypt protects text with a password you choose, using AES-GCM 256-bit keys derived via PBKDF2 (100,000 iterations, SHA-256) entirely in the browser. Random salt and IV are packed into a Base64 payload so you can decrypt later with the same password—without uploading plaintext to a remote cipher service.

Symmetric encryption means the same secret unlocks the data. This tool derives an AES-GCM key from your password and a random salt, encrypts with a random IV, then encodes salt + IV + ciphertext as Base64. Decrypt mode reverses the process: decode the payload, re-derive the key with the same password and salt, and recover the plaintext if the password is correct.

Client-side processing is honest and intentional: crypto.subtle runs in your browser so the message and password are not sent to ezToolFlow for encryption. That said, this is a convenience utility, not a full end-to-end secure messenger. Password strength matters enormously; weak passwords yield weak protection against offline guessing of the ciphertext. AES-GCM provides confidentiality and integrity for the ciphertext, but anyone who obtains both the Base64 blob and a weak password can attack it offline.

Never paste production master keys, customer PII dumps, or live infrastructure secrets into any third-party site when policy requires offline tools. For real key management use dedicated secret managers, HSM-backed systems, or audited libraries in your application. Treat outputs as sensitive, and remember browser extensions and shared machines can still observe what you type.

ezToolFlow is operated by Vishvajeet Shukla. For privacy details on browser tools, accounts, and AI features, read our Privacy Policy.

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