Encrypt & Decrypt Text
📦 Encrypt & Decrypt Text Source Code $4.99
Get the complete, ready‑to‑deploy HTML file with all styling and logic. This is the exact code powering the demo above — no dependencies, fully offline, and 100% client‑side. Perfect for your portfolio, client projects, or resale. One-time purchase, lifetime access.
What is an Encrypt & Decrypt Text Tool?
This utility encrypts plain text into an unreadable ciphertext using AES‑256‑GCM, the gold standard for secure encryption. Only someone with the correct password can decrypt the message back to its original form. Because everything runs in your browser, the text and password never leave your device, making it safe for sensitive communications or storing encrypted notes.
How to Use
- Enter your text in the first field—either the plain message you want to encrypt, or a base64‑encoded ciphertext you want to decrypt.
- Set a strong password in the key field. For decryption, use the exact same password that was used during encryption.
- Click "Encrypt" to convert the message into a base64 string starting with "AES‑GCM:". Click "Decrypt" to reverse the process. Use the copy button to save the result.
Frequently Asked Questions
Is my data safe? Does the password get stored?
Absolutely. Encryption and decryption are performed entirely in your browser. No text or password is ever transmitted, stored, or logged. The output ciphertext is the only thing you need to save if you want to keep the encrypted version.
Does this tool work offline?
Yes, completely. It uses the Web Crypto API built into modern browsers and has no external dependencies. Save the HTML file and you can encrypt or decrypt anywhere, even without internet.
What encryption algorithm is used?
The tool uses AES‑256‑GCM, which provides both confidentiality and integrity. The key is derived from your password using PBKDF2 with 100,000 iterations and a random salt, making brute‑force attacks much harder.
Disclaimer: This tool performs all operations locally in your browser. No data is stored, transmitted, or logged.