AES Encryption & Decryption
Encrypt and decrypt text using AES (Advanced Encryption Standard). Supports various key sizes and block modes.
Most Secure Online AES Encryption & Decryption (2025)
CodeToolTip provides an enterprise-grade, highly secure online AES encryption and AES decryption tool. Protect sensitive API keys, database credentials, or plain text using the industry-standard Advanced Encryption Standard (AES-256). Designed as a private, client-side alternative to Devglan, Anycript, JSToolset, and CyberChef. All cryptographic operations happen exclusively in your browser memory.
Why Use Our AES Tool over Devglan?
- Zero-Knowledge Architecture: Unlike online PHP-based encryptors, our tool executes AES logic strictly in your browser. We never see your secret key or payload.
- AES-256 Support: Utilizes 256-bit symmetric encryption, which is virtually uncrackable under modern computing power.
- Dynamic Salting: Automatically incorporates cryptographic salting and randomized IVs so identical text produces dynamically unique ciphertexts.
- Developer Optimized: Instantly share encrypted config files or secure tokens via Base64 format. Need asymmetric encryption instead? Check out our RSA Tool.
How to use AES Encryption?
- Enter the raw text you want to encrypt (or the Base64 ciphertext you need to decrypt).
- Type a strong, memorable Secret Key (password).
- Select whether to Encrypt or Decrypt the payload.
- Click the action button to process your data instantaneously via WebAssembly/JS.
- Copy the securely encoded result for storage or transmission.
Frequently Asked Questions (FAQ)
What is AES?
AES (Advanced Encryption Standard) is a symmetric block cipher chosen by the U.S. government to protect classified information. Symmetric means you use the identical key to mathematically lock and unlock the data.
Is this tool actually secure and private?
Yes. Websites like Devglan run server-side Java or PHP, meaning your text passes over a network. CodeToolTip is a modern Vue/Nuxt application running locally. Your AES encryption online happens entirely inside your computer. Disconnect from the Wi-Fi and the tool will still work flawlessly.
Can I decrypt Devglan encrypted data here?
If Devglan or CyberChef utilized standard CryptoJS/OpenSSL compatible padding and salting schemes, our decoder will successfully unpack it, provided you have the exact secret key.
Quick Tips
- AES is a symmetric key algorithm, meaning the same key is used for both encryption and decryption.
- Encryption modes like CBC or GCM use an Initialization Vector (IV).
- CodeToolTip uses AES-256 by default (CryptoJS default settings).
- Always keep your secret keys secure and never share them publicly.