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Zadein
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Zadein
ToolsPricing
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Security Tools

Free Online Security Tools

Security and cryptography tools for developers — generate passwords, hashes, HMACs, UUIDs, and redact secrets. Everything runs locally in your browser.

Password Generator

Generate strong, secure passwords.

Password Strength

Analyse password strength and entropy.

SHA-256 Hash

Generate SHA-256 cryptographic hashes.

HMAC Generator

Create HMAC signatures for API security.

UUID / ULID

Generate unique IDs and ULIDs.

Random String

Generate cryptographically random strings.

Secrets Redactor

Redact API keys and secrets from text.

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About Zadein Security Tools

Zadein's security tools include hash generation, HMAC signing, password generation and strength checking, and secrets redaction. They are designed for developers and security-conscious users who need reliable cryptographic and security utilities.

How to use

  1. 1Select the security tool you need.
  2. 2Enter the required input such as a message, key, or password.
  3. 3Copy or use the generated output in your project.

Common use cases

  • Generate a SHA-256 hash for data integrity verification.
  • Create HMAC signatures for API request authentication.
  • Generate strong random passwords for new accounts.
  • Redact secrets and credentials from text before sharing.

Frequently asked questions

Is my data sent to a server?

Security tool processing happens in the browser. Sensitive inputs such as passwords and keys are not transmitted to any server.

Are these tools suitable for production security use?

The tools are suitable for development, testing, and reference use. For production security implementations, follow security best practices and use vetted libraries.