AES-GCM Text Encryption Tool

Encrypt confidential text into a secure Base64 envelope using AES-256-GCM and PBKDF2 key derivation.

How It Works & Processing Standards

Encrypt confidential text into a secure Base64 envelope using AES-256-GCM and PBKDF2 key derivation.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 2,000,000 characters

AES-GCM Text Encryption Tool is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use AES-GCM Text Encryption Tool

  1. 1
    Enter Text & PassphraseType the confidential message and choose a strong encryption passphrase.
  2. 2
    EncryptGenerate a secure Base64 ciphertext envelope containing salt, IV, and ciphertext.
  3. 3
    Copy & ShareSafely transmit or store the encrypted envelope.

Common Use Cases

  • Securely sending API tokens, sensitive credentials, private notes, and recovery keys across insecure channels
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