Encrypt & Decrypt Text

Encrypt and decrypt text using AES, DES, TripleDES, Rabbit, or RC4 with a password — all processed locally in your browser.

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key
Plain Text
Encrypted Output
Encrypted result will appear here...
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About Encrypt & Decrypt Text

Text encryption is the process of converting plain text into an unreadable format (ciphertext) using a cryptographic algorithm and a secret key. Only someone with the correct key can reverse the process and recover the original text. This is a fundamental technique for protecting sensitive information during storage or transmission.

Our Encrypt & Decrypt Text tool supports five popular symmetric ciphers — AES, DES, TripleDES, Rabbit, and RC4 — all powered by the CryptoJS library and running entirely in your browser. No data ever leaves your device, making it safe for passwords, API keys, private messages, and any other confidential text you need to protect.

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How to Use

01

Choose Mode & Algorithm

Select "Encrypt" or "Decrypt" from the toggle, then pick your preferred cipher (AES is recommended for most use cases).

02

Enter Text & Password

Type or paste your plain text (or encrypted string) into the input area and provide a secret password in the key field.

03

Process & Copy

Click the action button to run the cipher. The result appears in the output pane — use the copy button to grab it instantly.

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Frequently Asked Questions

What is text encryption? expand_more
Text encryption transforms readable plain text into scrambled ciphertext using a mathematical algorithm and a secret key. The ciphertext looks like random characters and can only be converted back to the original text with the correct key and algorithm.
Which algorithm should I use? expand_more
AES (Advanced Encryption Standard) is the most widely recommended. It offers strong security and is the industry standard used by governments and enterprises worldwide. DES and TripleDES are older and less secure, while Rabbit and RC4 are stream ciphers suited for specific use cases.
Is my data sent to any server? expand_more
No. All encryption and decryption operations happen entirely in your browser using JavaScript. Your text and password never leave your device, ensuring complete privacy.
Why does decryption return an error? expand_more
Decryption fails when the password, algorithm, or encrypted text is incorrect. Make sure you are using the exact same password and algorithm that were used during encryption, and that the ciphertext has not been modified or truncated.