🔐 Security Tools
Text Encrypt & Decrypt
Encrypt messages using AES-256 with a passphrase, or decrypt encrypted text. Runs 100% in your browser — data never leaves your device.
Enter passphrase to see strength
ℹ️ How it works
This tool uses AES-256-GCM via the Web Crypto API built into your browser. Your text is encrypted with a key derived from your passphrase using PBKDF2. The encrypted output includes a random salt and IV — it cannot be decrypted without the exact passphrase.
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Free Text Encrypt & Decrypt — AES Encryption Online
Our free text encryption tool encrypts and decrypts text using AES-256 — the gold standard encryption algorithm used by governments and financial institutions. Password-based, browser-side, 100% private.
🔐 AES-256 Encryption
Industry-standard symmetric encryption.
🔑 Password-Based
Encrypt and decrypt with any password.
🔒 Browser-Side
No server involved — 100% local.
📋 Copy Ciphertext
Copy encrypted output to share or store.
How to Use — Step by Step
1
Enter your text
Type or paste the text to encrypt.
2
Set a password
Enter a strong password. You must use the same password to decrypt.
3
Encrypt
Click Encrypt. Your ciphertext (unreadable string) is generated.
4
Decrypt
Paste ciphertext, enter the same password, click Decrypt to recover original text.
Frequently Asked Questions
How secure is AES-256?
Used by governments, militaries and financial institutions worldwide. Considered computationally unbreakable. Even with all current computing power running for billions of years, brute-forcing AES-256 is not feasible.
What if I forget my password?
The encryption is unbreakable without the correct password. There is no recovery option. Always store passwords in a password manager.
Is the ciphertext safe to share?
Yes — it reveals nothing without the password. Keep the password completely separate from the ciphertext.
Encryption vs hashing?
Encryption is reversible with the key — you can recover original data. Hashing is one-way. Use encryption when you need to recover data; hashing when you only need to verify.
Can this encrypt files?
This tool encrypts text only. For file encryption, use VeraCrypt (full disk) or GPG (file/email encryption). Both free, industry-standard.