GitHub emiljohansson


Password manager and other encryption methods.


Some simple card games.

Password Generator

Generate a password that is difficult to guess.

Random String

Generate a random string of characters.

Current Time

Get the current time.

Progress Bar

Progress bar with a percentage.

Confirm Button

Hold down the button to confirm the action.


Calculate a mathematical expression from an API route.


Custom React Hooks.

Encrypt and Decrypt Strings

Encrypts and Decrypts a string.

Encode and Decode JWT

Encodes and Decodes a JWT.

Generate a JWT

Generates a JWT.


Authorize flow.

Two-Factor Authentication - Generate Code

Generate a two-factor authentication code.

Two-Factor Authentication - Enter Code

Enter a two-factor authentication code.