Optimized for Private Development
Working within a Private project architecture requires tools that respect your local environment's nuances. This Private AES Encrypt / Decrypt is explicitly verified to support Private-specific data structures and encoding standards while maintaining 100% data sovereignty.
Our zero-knowlege engine ensures that whether you are debugging a Private microservice, configuring a production CI/CD pipeline, or sanitizing data strings for a Private deployment, your proprietary logic never leaves your machine.
How can I encrypt text with AES-256-GCM safely online?
Encrypt and decrypt text using military-grade **AES-GCM (Galois/Counter Mode)** encryption directly in your browser. This utility uses the **Web Crypto API**, ensuring that your plaintext and passwords never leave your machine.
Why AES-256-GCM is the Gold Standard
AES (Advanced Encryption Standard) is the industry benchmark for symmetric encryption. However, the *mode* of operation is just as important as the algorithm itself.
- **Authenticated Encryption**: Unlike older modes like CBC, GCM provides "Authenticated Encryption." This means it generates an authentication tag that verifies the integrity of the data. If even a single bit is changed in the ciphertext, decryption will fail, preventing padding oracle attacks and bit-flipping.
- **256-bit Security**: While 128-bit is mathematically secure for now, 256-bit provides a massive safety margin against future quantum computing threats.
- **Hardware Acceleration**: Most modern CPUs (Intel AES-NI, Apple Silicon) have built-in instructions for AES-GCM, making it incredibly fast even for large payloads.
Cryptographic Best Practices Implemented
Our tool follows strict NIST guidelines for secure implementation:
- **PBKDF2 Key Derivation**: We don't use your password directly as a key. Instead, we use PBKDF2 with 100,000 iterations of SHA-256 and a random salt. This makes "brute-forcing" your password exponentially harder for attackers.
- **Unique Initialization Vectors (IV)**: Every single encryption generates a new, random 12-byte IV. Even if you encrypt the same text with the same password twice, the output will be completely different.
- **Zero-Persistence**: We do not store keys, salts, or passwords. Once you close the tab, the memory is cleared.
How to use the AES-256-GCM Tool:
1. **Choose Mode**: Toggle between Encrypt and Decrypt.
2. **Enter Password**: Use a strong passphrase. The tool will derive a 256-bit key using PBKDF2.
3. **Input Data**: Paste your sensitive text or the Base64-encoded ciphertext.
4. **Secure Output**: The resulting string contains the [Salt] + [IV] + [Ciphertext] + [Auth Tag], all packed into a single portable Base64 string.
Security Warning
Always store your password in a secure password manager. There is no "Password Reset" for AES encryption; if you lose the key, the data is cryptographically unrecoverable. 100% private, 100% browser-delivered, and perfect for sharing sensitive secrets over insecure channels like Slack or Email.
FAQ: Private AES Encrypt / Decrypt
- Does it support AES-256-GCM authentication?
- Yes, the Private AES Encrypt / Decrypt is fully optimized for aes-256-gcm authentication using our zero-knowledge local engine.
- Does it support PBKDF2 key derivation?
- Yes, the Private AES Encrypt / Decrypt is fully optimized for pbkdf2 key derivation using our zero-knowledge local engine.
- Does it support Hardware-accelerated Wasm?
- Yes, the Private AES Encrypt / Decrypt is fully optimized for hardware-accelerated wasm using our zero-knowledge local engine.
- Does it support Salt/IV management?
- Yes, the Private AES Encrypt / Decrypt is fully optimized for salt/iv management using our zero-knowledge local engine.