Free JWT Secret Key Generator
Create a secure JWT secret key for HS256, HS384 or HS512. Choose a key size and copy your signing secret in Base64URL, Base64 or hex.
Create a random password in your browser. Choose your length and characters, then copy it in one click.
Create a random password with the length and characters your account accepts. Start with 16 characters for a password, or choose PIN mode for a six-digit starting point. Copy your result or generate another.
Length and unpredictability both matter. The 16-character default is a practical starting point for a random account password; use a longer result when supported. The minimum length of 4 accommodates systems with strict limits and is not a recommendation for account passwords.
Use a different password for every account. Reusing one password lets a breach at one service put other accounts at risk. A password manager helps you keep long passwords without having to memorize each one.
Enable multi-factor authentication where available. Even a long random password can be stolen through phishing or a compromised device. Keep your browser and device updated, and enter credentials only on the intended service.
This tool uses your browser's Web Crypto random-number generator to choose characters. It does not use AI, personal details or a server to invent passwords. The tool does not send generated values to a server or save them in browser storage.
An entropy estimate describes the size of the possible result space under the generator's settings. It is not a guarantee of protection or a prediction of how long a password would take to crack. Account rate limits, password storage, reuse and credential theft all affect real security.