Secure Key Generator

Generate cryptographically secure passwords, API keys, UUIDs, JWT secrets, and encryption keys. All generation happens in your browser using crypto.getRandomValues()

Memorable Demo Phrase

Small word list; not for account passwords

~17 bits; low entropy

Strong Password (16 char)

Mixed characters for high security

~103 bits

Fort Knox (32 char)

Maximum security password

~206 bits

Alphanumeric (24 char)

Letters and numbers only

~142 bits

UUID v4

Universally unique identifier

122 bits

API Key

Stripe-style API key format

~190 bits

128-bit Hex Key

For AES-128 encryption

128 bits

256-bit Hex Key

For AES-256 encryption

256 bits

JWT Secret

Base64 encoded secret for JWT signing

256 bits

Django Secret Key

For Django SECRET_KEY setting

~282 bits

MongoDB ObjectId

24 character hex identifier

96 bits

WiFi / WPA Key

Strong wireless network password

~123 bits

Local key generation

All keys are generated entirely in your browser using the Web Crypto API (crypto.getRandomValues()). Generation does not upload the keys. Clipboard history and browser extensions can still expose copied values; the demo phrase has limited entropy.

What this tool does

Generate random strings in selected secret or identifier formats.

How to use it

Choose a format, generate a fresh value and copy it directly into the intended secret store.

Worked example

The 256-bit hexadecimal format contains 64 hex characters. Its value varies on every generation; never reuse an example as a secret.

Limitations and checks

A generated API-key-shaped string is not an issued provider credential. UUIDs are identifiers. The small-word-list memorable option has limited entropy and is not recommended for protecting accounts.

How your data is processed

Generation uses browser cryptographic randomness. Values are displayed in page memory; clipboard history, extensions and screenshots remain outside the tool’s control.

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