Free Text Encryption Tool
Encrypt and decrypt text using AES-256, Caesar cipher, and ROT13. Free, fast, and works entirely in your browser with no sign-up required.
Text Encryption & Decryption
Encrypt, decrypt, encode, and hash text using 30+ algorithms including AES, RSA, Caesar, Vigenere, Playfair, Base64, Morse, SHA-256, HMAC, and more. All processing happens locally in your browser.
Caesar Cipher
Shifts each letter by a fixed number of positions in the alphabet.
Shift Amount
Plain Text
Encrypted Output
Algorithm Reference
Modern Encryption
- AES-128-GCM
- AES-256-GCM
- DES (Simulated)edu
- Triple DES (Simulated)edu
- RC4 (Simulated)edu
- Blowfish (Simulated)edu
- RSA Key Generation
Classic Ciphers
- Caesar Cipheredu
- ROT13edu
- Vigenere Cipheredu
- Atbash Cipheredu
- Rail Fence Cipheredu
- Playfair Cipheredu
- Substitution Cipheredu
Encoding
- Base64edu
- Base32edu
- Hexadecimaledu
- URL Encodingedu
- HTML Entitiesedu
- ROT47edu
- Binaryedu
- Morse Codeedu
Hash Functions
- MD5edu
- SHA-1edu
- SHA-256
- SHA-384
- SHA-512
- HMAC-SHA256
Privacy First: All encryption, decryption, encoding, and hashing happens locally in your browser using the Web Crypto API. Your text and passwords are never sent to any server. Simulated algorithms (DES, Triple DES, RC4, Blowfish) are educational implementations and should not be used for real security.
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Frequently Asked Questions
What is the Text Encryption tool?
The Text Encryption tool is a free online utility that encrypts and decrypts text using AES-256, Caesar cipher, and ROT13 algorithms.
Is the Text Encryption tool free and private?
Yes, it is completely free with no registration required. All encryption and decryption happens client-side in your browser, so your data never leaves your device.
Which encryption algorithms are supported?
The Text Encryption tool supports AES-256 for strong encryption, plus Caesar cipher and ROT13 for simple text obfuscation.
Is my data safe with this tool?
Absolutely. The Text Encryption Tool processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the Text Encryption Tool work on mobile devices?
Yes, the Text Encryption Tool is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the Text Encryption Tool in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
Can I process large amounts of text?
Yes, the Text Encryption Tool handles text of any length with fast, real-time processing. Since everything runs in your browser, performance depends on your device but works well for most use cases.
How do I use the Text Encryption Tool?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The Text Encryption Tool works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Free Text Encryption Tool
Free Text Encryption Tool is a free, browser-based tool in our Text Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.