Free Online Encryption & Encoding Tools

Professional-grade online encryption, decryption, encoding and decoding tools. No download or registration required - all processing happens in your browser.

AESRSABase64Caesar Cipher

Cipher Toolbox

Free Online Encryption & Encoding Tools

Encryption

Hashing

Encoding

General Security

Threats & Attacks

Cipher Toolbox

Encryption

What's the difference between encryption and encoding?

What's the difference between symmetric and asymmetric encryption?

What is end-to-end encryption (E2EE)?

What's the purpose of an Initialization Vector (IV)?

What happens if an encryption key is lost?

Can I reuse the same key and IV combination?

Is encryption bulletproof?

Hashing

Can I use encryption as a password protection method?

What is a cryptographic hash function?

What is the difference between encryption and hashing?

Encoding

Is Base64 secure?

Can Base64 increase file size?

What's the difference between ASCII and UTF-8?

What's the difference between encoding and serialization?

Is it safe to store Base64 in a database?

General Security

What's the difference between HTTPS and HTTP?

What is a digital signature?

How can I tell if a website is secure?

What's the risk of storing encrypted data in the browser (localStorage)?

What is a VPN and how does it protect me?

Threats & Attacks

What is a brute-force attack?

What is a man-in-the-middle (MITM) attack?