Free Online Encryption Tools

Simple, secure, and reliable cryptography tools at your fingertips. All tools run in your browser - your data never leaves your device.

100% Free
Client-Side Only
Fast & Reliable

Welcome to Cipher Utility

Your trusted collection of encryption, encoding, and utility tools. Simple, secure, and free to use.

Classical Ciphers

Historical encryption methods like Caesar, Vigenère, and ROT13.

Encoding Tools

Base64, URL, HTML encoding and decoding utilities.

Hash Functions

MD5, SHA-1, SHA-256 and other cryptographic hash generators.

Utility Tools

Password generators, text analysis, and other helpful utilities.

Popular Tools

Caesar Cipher

Encrypt and decrypt text using the classic Caesar shift cipher.

Base64

Encode or decode text to and from Base64 format.

Password Generator

Create strong, secure passwords with customizable options.

Why Choose Cipher Utility?

Free to Use

All our tools are completely free, with no limitations or hidden costs.

Privacy First

Everything runs in your browser. Your data never leaves your device.

Simple & Secure

Easy to use interface with powerful cryptographic tools.