Random Key Generator
Generate cryptographically secure API keys, secrets, and tokens with custom length and charset.
About this tool
A random key generator creates cryptographically secure tokens, API secrets, and authentication keys on demand, essential for any application that needs to protect sensitive communications or resources. Whether you're setting up OAuth tokens, managing API credentials, generating secure session identifiers, or creating password reset links, a reliable key generator eliminates the security risks of weak or predictable key material and saves time by automating what would otherwise be manual work.
To use this tool, specify the length of your key (typically 16–64 characters for most use cases) and select the character set—alphanumeric, symbols, hexadecimal, or custom combinations. The tool instantly generates a cryptographically secure key directly in your browser without sending data to any server. You can generate single keys or batch-create multiple keys at once, then copy them individually for immediate use in your application, database, or configuration files.
Each generated key uses the browser's built-in crypto API (Web Crypto API) to ensure true randomness meeting industry standards. Keep in mind that this is a client-side tool—keys are never stored on a server, making it safe for sensitive development work. Bookmark this page or use it whenever you need quick, reliable key generation during development, testing, or production setup.
Frequently Asked Questions
Code Implementation
import secrets
import string
import base64
import os
def generate_hex_key(bytes_count: int = 32) -> str:
"""Generate a cryptographically secure hex key."""
return secrets.token_hex(bytes_count)
def generate_base64_key(bytes_count: int = 32) -> str:
"""Generate a URL-safe base64 key (no padding)."""
return secrets.token_urlsafe(bytes_count)
def generate_alphanumeric_key(length: int = 32) -> str:
"""Generate a random alphanumeric key."""
alphabet = string.ascii_letters + string.digits
return "".join(secrets.choice(alphabet) for _ in range(length))
def generate_custom_key(length: int = 32, charset: str = "") -> str:
"""Generate a key from a custom character set."""
if not charset:
charset = string.ascii_letters + string.digits + "!@#$%^&*()-_=+"
return "".join(secrets.choice(charset) for _ in range(length))
def generate_bytes_key(bytes_count: int = 32) -> bytes:
"""Generate raw random bytes."""
return os.urandom(bytes_count)
if __name__ == "__main__":
print("256-bit hex key: ", generate_hex_key(32))
print("256-bit base64 key: ", generate_base64_key(32))
print("32-char alphanum: ", generate_alphanumeric_key(32))
print("32-char custom: ", generate_custom_key(32))
print("Raw bytes (hex): ", generate_bytes_key(16).hex())Comments & Feedback
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