Question 1

How do I generate an RSA key pair with this tool?

Accepted Answer

Click generate, and the tool creates a matching public and private key pair directly in your browser, ready to copy or use immediately.

Question 2

What's the difference between the public and private key?

Accepted Answer

The public key encrypts messages and can be shared freely, while the private key decrypts them and must be kept secret.

Question 3

What key sizes does the RSA tool support?

Accepted Answer

You can choose from common RSA key lengths (such as 1024, 2048, or higher) — larger keys are more secure but slower to generate and use.

Question 4

Can I encrypt and decrypt messages directly in the browser?

Accepted Answer

Yes — paste your message and the appropriate key to encrypt or decrypt instantly, all without uploading anything to a server.

Question 5

Is it safe to generate cryptographic keys using an online tool?

Accepted Answer

Yes — key generation and all cryptographic operations run entirely client-side using the Web Crypto API, so keys are never transmitted or stored remotely.

RSA Encryption & Decryption

Frequently asked questions