Encryption & Decryption Tool — Multi-Algorithm
Security & Encryption
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About This Tool
Free, private, serverless encryption and decryption tool. Encrypt/decrypt text with AES-GCM 256-bit encryption, Base64, ROT13, and XOR cipher. Password-based key derivation (PBKDF2). No data leaves your browser — 100% client-side using Web Crypto API.
How to Use
- Select an algorithm (AES-GCM, Base64, ROT13, XOR).
- Choose Encrypt or Decrypt mode.
- Enter a password (for AES/XOR).
- Paste your text.
- Click Encrypt/Decrypt.
- Copy the result.
Frequently Asked Questions
How secure is the AES encryption?
The tool uses AES-GCM with 256-bit keys derived via PBKDF2 with 100,000 iterations. Random salt and IV are generated per encryption, making each encryption unique.
Which algorithm should I use?
AES-GCM for strong encryption (password-based, very secure). Base64 for encoding (not encryption). ROT13 for simple text obfuscation. XOR for basic symmetric cipher.
Can I decrypt data encrypted by this tool?
Yes. For AES: use the same password. For Base64: switch to decrypt mode. For ROT13: apply it again (self-reversing). For XOR: use the same key.
Is my data private?
Absolutely. All encryption/decryption uses the browser Web Crypto API. No data, keys, or passwords are sent to any server.
Guides & Tutorials
In-depth guides for every tool. Learn how to process your data privately, for free, right in your browser.
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